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December 9, 2008 /News, Views & Updates /

Adobe PDF iFilter 9 for 64-bit Platforms now available

Adobe has released its latest version of the PDF iFilter, version 9, that will work on 64 Bit Platforms. It is a free update that will give end users and administrators the ability to search and index PDF documents using Microsoft Indexing clients on 64-bit platforms. You can download it here. More after the break…

For those of you on 32-bit platforms, there is no need to look for an independent 32-bit PDF iFilter. The latest version of PDF iFilter 32–bit is always bundled with Acrobat and Reader and gets installed automatically with installation of any of the above software.

It has been tested for the following platforms and applications.

Environment Operating System Application
Desktop Windows XP x64 SP2

* Windows Desktop Search 3 and 4

* Windows Indexing Service

Windows Vista x64 SP1 * Windows Search 4
Server Windows Server 2003 x64 Edition R2 SP2

* Microsoft Office SharePoint Server 2007

* Microsoft Exchange Server 2007

* Windows Desktop Search 3

Windows Server 2008 x64 SP1 * Microsoft Office SharePoint Server 2007
* Microsoft SQL Server 2005
* Windows Search 4

We look forward to your feedback.


Acrobat Product Manager

Categories: News, Views & Updates


  • By Spence - 6:07 PM on December 11, 2008   Reply

    What about preview handling as per Acrobat reader for Outlook and Windows Explorer on x64 systems? Does this update help?

    [Spence – No, this update is not related to preview handling. We still have work to do to get preview handling complete on x64 systems. If you have Reader 9 (or Acrobat 9) installed, you’ll see previews on x64 systems in some cases (e.g. in Outlook on XP x64) and probably not in other cases (e.g. in Outlook or Win Explorer on Vista x64). It’s something that we’re still working on. Thanks – Dave]

  • By jose ayala - 6:31 PM on December 27, 2008   Reply

    good thing

  • By Batuhan - 8:48 AM on January 13, 2009   Reply

    Is there any support for Windows IA64Bit (Itanium). I see that there is a support for x64 but I couldn’t find anything for IA64 support.
    What is the solution for IA64 Windows?

  • By Steve - 8:16 PM on January 14, 2009   Reply

    I’ve just purchased a new PC running Vista 64-bit. After installing the latest Adobe Reader (9.0), I was disappointed to see the error “Registered IFilter is not found” in Vista’s indexing service for pdf and other Adobe files.
    Note I tried a fresh install of Vista (formatted drive) followed by installing Adobe Reader 9.0 and the same “Registered IFilter is not found” error is there.
    Then I found your blog!
    This is good news – BUT, why isn’t it simply bundled with Adobe Reader 9.0? There are a huge number of PCs out there running 64-bit OS’s these days.
    Also, can we simply install the 64-bit filter over the 32-bit filter that is installed automatically with Reader? Or do we need to manually unregister the 32-bit filter first?
    Will future Adobe Reader updates break the 64-bit filter by again installing the 32-bit filter?

    [Steve –
    * We are hoping to bundle 64-bit iFilter with Reader and Acrobat in the future. However, in the interest of getting the plug-in into user’s hands as quickly as possible, we decided to release it as a stand-alone plug-in in the short-term.
    * On a 64-bit system, Reader 9’s 32-iFilter should not have been registered. So you should be able to simply install 64-bit iFilter over 32-bit iFilter and it should work fine.
    – Aman]

  • By Shannon - 11:00 PM on February 5, 2009   Reply

    I just bought a new laptop that has Windows Vista instead of Windows XP. My laptop also runs on 64-bit my PC ran on 32-bit. I am trying to watch TV, look at videos and/or listen to music and I cannot do any of this. Everytime I try to download flash player/adobe and it says you cannot operate on a 64-bit. I mwould love to see something to help get your program working on my laptop. What do you suggest?

    [Shannon – Sorry, you’ll need to check with the Flash team. This is a different group than mine. – Dave]

  • By Erik - 5:05 AM on February 9, 2009   Reply

    What is this:
    “After installing the PDF iFilter, it is recommended that you set your system PATH environment variable to the “bin” folder of the “Ifilter” installation.”
    Last time i modified the enviroment path to get a program to work was…hmm, maybe 1997? At least it wasn’t this millenium, that’s for sure.
    And what do you mean with RECOMMENDED? Will it stop working if you don’t do it or what exactly is the difference?
    Overall it seems very unstable, i can find results in some of my documents but in others i don’t find anything.

    [Erik – We tried to contact you to get more info, but you left us an invalid email address. Regardless,you need to set ‘PATH’ environment variable to make it work with repositories like SQL server, SharePoint and Exchange server. iFilter with default windows indexing services like WDS works fine without setting this PATH. – Aman]

  • By Jehanzeb Khan - 3:38 AM on February 12, 2009   Reply

    I am integrating the PDF IFilter with Sharepoint Server. I wanted to ask whether the IFilter also performs OCR of PDFs containing scanned documents and provides that as text to the Sharepoint indexing service?
    Adobe Reader performs a decent OCR of a scanned document when I do a Select All and Copy.

    [Jehanzep – No, PDF iFilter does not OCR. You’ll need to do that separately with Acrobat or another tool. – Dave]

  • By Marsha - 10:56 AM on February 14, 2009   Reply

    I’m trying to find the Standard Acrobat 9 software for my 64- bit platform computer. I currently do not have adobe on my computer. Help!!!!

    [Marsha – Acrobat 9, including Acrobat Standard, supports WinXP 64, WinVista 64 and Win2003 64. See
    here for more details. – Dave]

  • By Vic Orgos - 10:09 PM on February 15, 2009   Reply

    What about the rest of Acrobat Reader? When will be ported to native 64 bit?

    [Vic – Reader today supports 64-bit systems. – Dave]

  • By Rob - 11:43 PM on February 16, 2009   Reply

    This is good news – my only question comment is that it’s a shame that the 32-bit standalone version is not available too – I would just like the ability to install the ifilter on its own without the need for acrobat to be installed as well. It the version 9 32 bit version available like this?
    Also are there many differences between earlier ifilter versions and this one (namely 7)

    [iFilter 9 32-bit is included with Adobe Acrobat 9 and the free Adobe Reader 9. You automatically get iFilter 9 32-bit when you install Reader 9. Is there any specific reason why you would want it to be a separate installer?
    iFilter 9 for 64-bit platforms will enable searching within documents with PDF Version 1.7. Also it will enable searching within PDF Portfolios that were introduced in Acrobat 9. – Aman]

  • By Vladimír Horský - 2:04 AM on February 21, 2009   Reply

    In your document “configuring_pdf_ifilter_for_ms_sharepoint_2007.pdf”
    downloaded from you navigate me in point 2.b. to path in registry:
    \\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\12.0\Search\Applications\{site GUID}\Gather\Portal_Content\Extensions\ExtensionList
    But on my SBS2008 no this path exist. There is not “Office Server” key, there is not “Portal_Content” to find in registry.
    So I am not able to configure SharePoint to correctly search PDF files.

    [Vladimir – You might try to do it via Search administration page for the server. In the same document, we have a note at the end of point no 2:
    “Note: This can also be achieved via SharePoint Server Search Administration page by adding ‘pdf’ to list of File Types in Search Administration->File Types. This would automatically add an entry for ‘pdf’ filetype as mentioned above in step 1” – Aman]

  • By Jeff - 9:23 PM on February 24, 2009   Reply

    I also have Vista x64 and can not preview pdf docs within explorer or outlook 2007. Please let me know if/when a fix is available.

  • By Selene - 10:20 AM on March 6, 2009   Reply

    I don’t understand alot of what is written here. I have a Dell xps20 w/ Vista 64 and cannot load reader due to a %Appdata%\ not found error 1606 message. I would just like step by step to get reader installed and working on my pc. I have downloaded the ifilter – sorry if I seem dense, but this is really not my area of expertise so help would be greatly appreciated!

    [Selene – It sounds like your question isn’t really with iFilter. Instead it sounds like you’re having issues installing Reader 9 on Vista 64. Your best bet would be to contact Adobe Support (if you or your company have an Adobe Support Contract) or to post your question on the Reader Forum.
    It sounds like maybe your Application Data folder is in a non-standard location (like maybe a network drive) and therefore installation is failing. There are two additional articles here and here which are related to what you’re talking about, but they’re pretty technical and a lot depends on how your system is set up. I think it’s easiest to turn to Support or the Forum. Good luck – Dave

  • By Hakon - 1:48 PM on March 12, 2009   Reply

    Is the 64-bit IFilter affected by CVE-2009-0658 vulnerability? I’ve tried to search for info on this but have’nt found a single pice of information

  • By Martin - 9:13 AM on March 26, 2009   Reply

    Is version 9 of the iFilter written to use multi threading? Or still only one thread?

    [iFilter 9 is not multi threaded. However it will run in a thread safe manner even on a multi threaded system so that multiple threads can access it simultaneously without any failure. It just won’t take advantage of multi threading itself. – Aman]

  • By Leo - 1:13 PM on March 26, 2009   Reply

    Does version 9 support MSSQL 2008 64-bit and Windows SQL Server 64-bit? Thanks.

    [iFilter 9 for 64-bit platforms has been tested with MS SQL Server 2005. Ideally, it should work with MS SQL Server 2008, but we haven’t tested with it. – Aman]

  • By TERRI WINTER - 8:49 AM on April 7, 2009   Reply

    how do I fix
    error 1606. could not access network location % APPDATA%.\.

    [Terri – Does this have to do with iFilter or Acrobat/Reader? See my answer to Selene’s question above. – Dave]

  • By Julian - 12:11 PM on April 13, 2009   Reply

    Do you have to install Acrobat 9 on the server to utilize the 64-bit PDF Ifilter? Or is it completely a standalone install similar to IFilter 6.0?

    [Julian – It’s a completely stand-alone install. – Dave]

  • By rhonda - 8:50 PM on April 13, 2009   Reply

    error 1606. could not access network location % APPDATA%.\.
    Reader worked fine one day and got this message the next. I tried to upgrade to 8.1 but still get the same message. Tried to uninstall and I get the same. Any ideas> How/where do I check paths, pointers, etc for properties or register?

    [Rhonda – See my answer to Selene’s question above. – Dave]

  • By Don - 12:42 PM on April 16, 2009   Reply

    Do you happen to have any instructions for installing the 32bit ifilter (included in Reader v9) for Windows SharePoint Service v3.0? Microsoft has a doc that references this but it’s not updated for v9 of the reader with ifilter built in. I tried these steps with the latest version yet the contents of my PDFs are not indext properly on SharePoint

  • By Julian - 2:29 PM on April 20, 2009   Reply

    Does PDF iFilter 9 for 64-bit multi-threaded?

    [Julian – This question was answered above. See Martin’s March 26 post and Aman’s reply. – Dave]

  • By jim wilson - 8:01 PM on May 11, 2009   Reply

    What is error 1606? I’m trying to install Adobe on my new Toshiba laptop but it won’t let me complete the install. It gets to the end and then says error 1606. Can you help me?

  • By Kurt - 2:56 AM on May 26, 2009   Reply

    Bug: After installing this IFilter, Adobe Reader is set as default PDF-reader.

  • By Julian - 3:16 PM on May 26, 2009   Reply

    I have installed the 64-bit pdf ifilter. I verified that the file type has been added correctly. But I still cannot index pdf files. Does the server need to be restarted to complete the installation?

  • By Patrick - 8:39 AM on June 4, 2009   Reply

    If we want to install ifilter on Server 2003, we don’t really need adobe reader for anything.
    when installing adobe reader on server 03, will the indexing service automatically use the new version of ifilter if we already have version 6 running for that?

  • By Jay - 11:36 AM on June 9, 2009   Reply

    The reason I’d like a stand-alone installer for the 32-bit IFilter is so I can install it on a Sharepoint server without having to install Reader or another large application that isn’t necessary.

  • By Jason - 11:01 PM on July 3, 2009   Reply

    Just recently when I try to go to certain website, I get a message saying that adobe 8.1 is not working and then I recieve “error 1606. Could not access network location %APPDATA%\” message. What can I do to resolve this problem?

    [Jason – See my answer to Selene’s question above. – Dave]

  • By ali - 9:49 AM on July 14, 2009   Reply

    when i start download flash player in my laptop using the install_flash player it’s can’t completely….an i receive “error opening file for writing:
    an came with 3 choices (abort,retry and ignore)..
    what should i do???why the error appear???.

    [Ali – Please see the Flash Support information on Adobe.Com. This is a different group then my Acrobat group. – Dave]

  • By Mohammad Areef - 6:59 AM on July 15, 2009   Reply

    How is the licensing policy of this utility? Can it be installed in customer machine as part of our product installation?

    [Mohammad – If you want to redistribute and install iFilter with your product, you need to sign a short Adobe distribution agreement. I’ll have someone contact you. Thanks! – Dave]

  • By Mohammad Areef - 7:43 AM on July 20, 2009   Reply

    Thanks for the comments Dave. I have not got any information further on the Adobe distribution agreement from your team. Can you ask someone to get in touch with me at the earliest?
    How about the costing for the redistribution? Is it freely redistributable with the agreement or is there some costing for the same?

  • By John Sistrunk - 12:23 PM on July 28, 2009   Reply

    I have installed Adobe 9 and can now preview PDF attachments in Outlook 2007. Should I also be able to search the attachments if I have created “searchable” PDF files? I have created several PDF files with my scanner using both the “searchable” and “non-searchable” option, but neither attachment shows up during an Outlook search. DOC, PPT, and XLS attachments show up just fine.

    [John – To confirm if your PDF is searchable, use “Find” in Acrobat. If Acrobat can find a word, then it’s searchable. However, if you want Windows or Outlook to search PDF files, like they can search Office files, you’ll need to make sure that you have the PDF iFilter plug-in installed. On 32-bit Windows, it’s installed automatically with Reader/Acrobat 9. On 64-bit Windows, you’ll need to download it for free from Adobe here. If you need more help, please contact Acrobat Support here. You can post in the Forum (see lower-right corner of page) or contact Support (see upper-right corner of page). – Dave]

  • By Justin - 1:22 AM on July 29, 2009   Reply

    ERROR1606.Could not access network location%APPDATA%\.yeah people have this problem for better than a year so how about fixin’ it!!!!!!!!!!!!!!!!!!!!!!!

  • By Candie Vredenburg - 8:55 AM on August 10, 2009   Reply

    Hi, I have Vista 32 bit laptop… I was trying to install my new Wireless HP printer and I get this message:
    Error 1606 could not access network location %APPDATA%

  • By Ed Williamson - 3:36 PM on August 27, 2009   Reply

    Is there an authoritative guide to what security and copy protection settings will and will not work with MOSS 2007 search and .pdf IFilters?
    It seems that there are very many common references about the fact that IFilters exist of varying quality re: the installation and that they allow the parsing of .pdf documents in general but no clear definition of what content creators and publishers of documents can and cannot do for securing the document and still allowing a consistently searchable state including correct settings based on version of the Adobe product.
    Thanks in advance – as you may be able to tell we are getting inconsistent results in search with secured .pdf’s with both correctly installed 32 bit and 64 bit Ifilters on separate MOSS farms. I am hoping to find a ‘These settings within a document’s properties will work, these settings will not’ type of answer that will make the search of .pdf’s predictable with properly installed and configured current IFilters. (password security? certificate security? Acrobat Version?, etc. and granular settings under that which will secure a document for public consuption and allow successful predictable MOSS Search results.)

    [Ed – I’m not exactly sure what result you’re trying to achieve. It sounds like you want access to the document to be restricted, but you want MOSS Search to be able to search the entire contents of the document. This seems contradictory to me, but I’m probably not understanding your use case completely.
    I *believe* (although I’ll see if another team member wants to add more details) that the Adobe PDF iFilter respects the security settings that the document author sets in Advanced > Security > Encrypt with Password. So if the document author specifies that text can be copied from the document, PDF iFilter can extract text from that document. If the document author specifies that text cannot be copied from the document, PDF iFilter cannot extract text from that document. If the document author has specified an Open Password for the document, then by definition PDF iFilter cannot extract text from this document. Extracting out metadata is different and can also be specified in this same Encrypt dialog. I’ll see if anyone else can add some more color to this or provide any links/references. – Dave]

    [Ed – I got the following update from the iFilter Team – Dave
    1. If the security policy of a PDF document doesn’t allow text to be copied/extracted, then we abide by that and iFilter doesn’t extract text from the document.
    2. Text will not be extracted if a document has either Open password set or permission password set to restrict text copying.
    3. However, metadata is always searchable irrespective of whether document permissions allow metadata extraction or not. There is a bug logged for this issue.]

  • By Regina - 9:40 PM on September 14, 2009   Reply

    I keep getting an error message…Error 1606 Could not access local network. What does this mean? And I can not get any of my pdf files open at all. My Adobe 8.1 stopped working and I tried to reinstall it and it does not work, someone help me please!

    [Regina – See my answer to Selene’s question above. – Dave]

  • By Manasi - 2:42 AM on September 16, 2009   Reply

    can anyone please tell if Adobe IFilter 9.0 support searches for metadata xmp of PDF?

    [Manasi – Yes, it does. – Dave]

  • By Eben - 8:29 PM on September 20, 2009   Reply

    I am not able to full-text index PDF documents.
    Windows Server 2008 x64 SP1
    Microsoft Office SharePoint Server 2007
    Microsoft SQL Server 2008
    I have followed all the steps and still no results.
    Any idea what can cause this? No errors reported in the logs.

  • By Manasi - 4:51 AM on September 22, 2009   Reply

    Will Adobe IFilter 9.0 also support indexing and searching of PDFs of next versions that may be released ahead?
    Require this information urgently..
    Thanks in advance..

  • By Manasi - 5:19 AM on September 22, 2009   Reply

    Hi Dave,
    Thanks for your reply. I needed more clarification on searches for xmp metadata support by Adobe IFilter 9.0. As far as I know, Adobe IFilter doesn’t support xmp metadata searches. That’s why we need to go for vendors like IFilterShop and PDFlib. Does Adobe IFilter 9.0 have this new feature of xmp? Can you provide me with some reference links?
    Thanks in advance…Awaiting your reply

    I checked with the PDF iFilter team. Here’s some more clarification:
    1. You asked: “Will Adobe IFilter 9.0 also support indexing and searching of PDFs of next versions that may be released ahead?” They answered: “PDF iFilter 9 will still be able to extract text from a next version PDF, but the newly added features in future versions won’t be supported by earlier version of iFilter.”
    2. You asked: “I needed more clarification on searches for xmp metadata support by Adobe IFilter 9.0.” They answered: “iFIlter 9 (both 32 & 64 bit) does not support XMP metadata. It’s something we’re considering for the future.” Turns out, I was wrong about this one.

  • By Manasi - 11:20 PM on September 22, 2009   Reply

    Refer below link for steps..
    have not tried yet but do give it a chance :-)

  • By Manasi - 4:26 AM on September 23, 2009   Reply

    Even I am unable to do full text search on PDFs after installing Adobe Reader 9.0 ( having IFilter 9.0) and also have configured it with WSS 3.0. Any idea, why is this happening? Please guide for resolution.

  • By Manasi - 11:23 PM on September 28, 2009   Reply

    Thanks a lot Dave. Then another question arises that if Adobe IFilter 9.0 wont support added features in future, then will Adobe provide any kind of support policy regarding this? Will Adobe provide any facility to migrate IFilter 9.0 to next versions?
    Thanks in advance..

    [Manasi – If new “content types” are added to PDF, and if the current PDF iFilter can’t index these new content types, then we would consider supporting these new content types in a future release of PDF iFilter. – Dave]

  • By Pete - 8:47 PM on September 29, 2009   Reply

    I am also not able to full-text index PDF documents.
    Windows Server 2008 x64 SP1
    Microsoft Office SharePoint Server 2007
    Microsoft SQL Server 2008
    No errors reported in the logs.
    Thanks for any help,

  • By Sandy Lauramore - 7:39 AM on October 19, 2009   Reply

    I cannot change or add any thing to my computer because of this error: Error 1606. Could not access network location APPDATA%\. I have searched it out and tried what has been suggested, but nothing has worked. Will you please take the time to give me step by step istructions so I can fix this problem. I am disabled and sit home all the time and this computer helps pass the time. I do most of my buying over the internet too and this problem hinders me.
    Thanking you in advance for our cooperation concerning this hateful problem.
    Sandy Lauramore
    360 E. McIver Avenue, Macclenny, FL 32063-2502

    [Sandy – Please contact Acrobat Support here so they can diagnosis what exactly is happening on your machine. You can post in the Forum or contact Support directly. Good luck.]

  • By emma m - 1:11 PM on October 25, 2009   Reply

    I am having a problem with 1606 as well and like Ms Sandy am very fustrated because this problem will not let me downoload anything and will not let me get all of my updates that are recommemded to be updated when the time comes. I have tried to update the 9.0 version of adobe reader and have been unsucessful with that as well. The problem is still there I have tried to uninstall the 8.1.2 version of the reader and cannot uninstall it either. I am having a very hard time trying to find any answers. Do I have a virus problem? I am still learning how to use my computer for more things except ordering merchandise. Can you please help me?!

    [Emma – Please see my comments to Selene above on March 6, 2009. – Dave]

  • By Janet - 6:57 PM on October 26, 2009   Reply

    Dear Dave, I have read all these threads and your answers, especially the one to Selena with all the other links, and I still CAN NOT load in Adobe 9. I have Vista 32 bit system that successfully has loaded Adobe 8 and Microsoft office. I understand from the threads that Adobe 9, with a Vista 32 bit system, does NOT need additional filter downloads, SO WHY CAN I NOT LOAD THIS IN. I get the Error message 1606 could not access network location %APPDATA%. It seems to me to be ADOBE’S PROBLEM and not a problem with my registry or else I would have had the same problem with Adobe 8. Why can’t we get a straight answer. Now I can’t even use Adobe 8 because it will take me to the page that says I can download a more current version. Please get your internal problems resolved and help out the rest of us. I await your response.

    [Janet – I’m not an expert in this area. But my understanding is that this issue appears sporadically on some machines, given other external factors. I think your best bet is to contact Adobe Support, so they can gather all the appropriate details about your machine and offer the best solution. – Dave]

  • By Joshua - 7:05 AM on October 28, 2009   Reply

    When will Adobe come out with a PDF IFilter for 64-bit machines that will be multi-threaded? I have a large number of PDF’s that I index with Microsoft Indexing Service, and I find this iFilter to be quite slow. Notice the comparison posted on MSDN:
    I would even be willing to pay for one, since I am already considering purchasing an alternative…

  • By perry shenas - 12:47 PM on November 10, 2009   Reply

    I am trying to setup the ifilter on the following; win 2008 server enterprise edition, sql server 2008 express edition, windows indexing service. i have installed the reader 9.0 with no success. what is the recommended install for my setup? is it simply install reader 9? what needs to be present in the registry? exactly which folder with the reader install should i point my path var? i can’t find the bin dir for the reader install. lots of questions, please help?

  • By mcaden - 4:46 PM on November 23, 2009   Reply

    I’ve seen nothing about redistribution of the Adobe IFilter anywhere except the question Mohammad asked above. Where can I go to learn about redistributing the Adobe IFilter so my product can index PDFs without using a larger library like PDFBox?

    [Mcaden – I’ll have someone contact you about distribution. – Dave]

  • By r-dog - 12:04 PM on December 17, 2009   Reply

    Not working for me either. The Adobe iFilter is not nearly as stable as the Foxit 64-bit iFilter.
    We have not been able to search PDFs for years, ever since we upgraded to a 64-bit system.
    SQL Server and sharepoint should ship with this functionality built-in otherwise just move on to the XPS format! Goodbye PDF, good riddens with the silly PDF format.
    I am way too frustrated after messing with this for so many years. It is easier to just write off adobe all together.

  • By Mickey Mouse - 9:11 PM on December 19, 2009   Reply

    Well, Since Adobe is side-stepping the issue of no thumbnails in 64bit windows, when everyone can easily see that the preview handler is not registering correctly (which is an Adobe problem, not WINDOWS), then i guess everyone will have to stop using Acrobat, and find a better alternative. After all, everyone else is moving to 64bit, and there are a lot of GOOD alternatives.

  • By Vic Gardener - 3:20 AM on January 8, 2010   Reply

    Error 1606 could not access network location %appdata%\. What is this error? How do I correct it as is being identified as a internal problem. have installed adobe PDL iFilter 9 shredder? unable to download internet from sites for my job.(Vista Home Premium)

  • By Rich Hawkinson - 7:26 PM on January 27, 2010   Reply

    Is there any support for Windows IA64Bit (Itanium)?

  • By Aman Deep Nagpal - 12:21 AM on February 1, 2010   Reply

    We have tested iFilter only on platforms mentioned in the blog above. This platform was not tested.

  • By Mike - 9:46 AM on February 2, 2010   Reply

    Running Windows 2008 R2 with the ifilter 9 64bit. Since installing and indexing, we are seeing a bunch of temp folders on the root of the drive we’re indexing folders on. These temp folders start with A9R (ie A9R944-9ad9e2) and each contain a single pdf file (some duplicates of other folders). Any ideas on why this would happen?

    • By Aaron Page - 10:07 AM on November 2, 2010   Reply

      Did you ever figure this out? I am having the same issue running SharePoint 2010 with the 64-bit ifilter on Server 2008 r2. It is now up to 14.5 gigs and 75k + files. Even worse I can’t find any of these files in there original directory anymore. HELP!!!

  • By Jacob - 12:18 PM on February 23, 2010   Reply

    I am having problems getting Adobe’s IFilter to work with Windows Indexing Service. I am running Windows Server 2008 SP2 32bit and have installed Adobe IFilter 6.0. After installing the IFilter I created a catalog in Indexing Service and tried to index pdf documents. These documents will not pull up in a search and I am stumped. Any help is appreciated.

  • By Aman Deep Nagpal - 4:35 PM on February 24, 2010   Reply

    Have you tried running with iFilter 9 that is bundled with Adobe Reader 9?

  • By Jacob - 3:38 PM on March 1, 2010   Reply

    I have tried running it with Adobe Reader 9 installed. No luck.

  • By Glenn Stewart - 4:30 PM on March 7, 2010   Reply

    Is iFilter 9 compatible with Windows 7 64 bit operating systems?

  • By Khaja Syed - 3:00 PM on March 9, 2010   Reply

    I am using ifilters to index content from various files. iFilters load the files from within managed stored procedures (sql server 2005). The new 64bit ifilter loads the pdf files without any problem when its not run from within sql managed procedures. Is there anything that needs to be done to make it work?
    Any help would be appreciated.

  • By Leading Concepts UK LTD - 4:37 AM on March 11, 2010   Reply

    does this work on Windows 7 64 bit? I see it’s the same Question as above.. I’m getting unexpected errors that worked fine on 32 bit. Product that requires this is EPiServer

  • By Mark - 5:31 AM on March 22, 2010   Reply

    I cannot index/crawl pdf’s nor can I see the Icon in MOSS after installing the adobe 9.0 64-bit ifilter on my Windows Server 2008 R2 system. I have followed all directions, registry updates, XML file updates, path updates, etc. Has anyone got this to work on R2?

  • By Janice - 7:03 AM on March 23, 2010   Reply

    Our client uses Sharepoint 2001 as the backend document repository (including many PDF docs) for their Intranet site. They now want to upgrade from Adobe 6 to Adobe 9. Is the Adobe 9 ifilter supported on the Sharepoint 2001 platform? Has anyone tried this?

  • By Julian - 9:14 AM on March 26, 2010   Reply

    I am having trouble with the iFilter and indexing pdf files created with Adobe Distiller. Does the iFilter handle files converted to PDF differently than native PDF files?

  • By Aman Deep Nagpal - 7:58 AM on March 29, 2010   Reply

    No. PDF iFilter doesn’t differentiate between files converted to PDF and native PDF files.
    Please review your set-up again.

  • By Julian - 11:07 AM on March 30, 2010   Reply

    Thanks for your response. Is this also true for PDF files created through Office applications? We are having trouble indexing files that were originally created in an office application (Word, PowerPoint) and then saved as a PDF file. Could this be a configuration issue?

  • By jdbluver642 - 2:52 PM on April 6, 2010   Reply

    How come whenever i try to look at ODT or PDF files, my documents don’t come up, but instead all i see is chinese letters. How do i fix this to see my documents again?

  • By hiang hao - 11:04 PM on April 8, 2010   Reply

    hi, i am using window 7 and adobe 9. After installing the patch, filter description for pdf had changed to pdf filter from “ifilter not registered”. And i tick “index properties & file content”. However, i still cant search by typing words that are found in content but not in file title. IS there any way to solve this?

  • By AJ - 10:45 AM on April 25, 2010   Reply

    Same 64-bit Windows 7 compatibility question as other posters have asked. Why isn’t Adobe answering this straightforward question?

  • By Aman Deep Nagpal - 10:50 PM on April 26, 2010   Reply

    PDF iFilter 9 has not been tested with Windows 7 64-bit as it was released before the release of Win 7 OS.

  • By TCP - 5:38 AM on May 7, 2010   Reply

    Can Adobe give an estimate for when it expects to release (or certify the existing) IFilter bits for 64-bit Windows 7? I applaud Adobe for testing before claiming compatibility (though I am rather surprised at the 8-month gap between W7 RTM and Adobe’s support).

  • By SO - 2:08 AM on May 12, 2010   Reply

    Same 64-bit Windows 7 compatibility question as other posters have asked. Why isn’t Adobe answering this straightforward question?

  • By Lesley - 1:31 PM on May 19, 2010   Reply

    I’ve successfully installed Adobe’s PDF iFilter 9 on my Windows 2008 64-bit server. I can index PDF documents fine in Sharepoint (Microsoft Office SharePoint Server 2007) if they are standalone or attached to .msg files. However, pdf documents attached to .eml files are not being indexed. Is this a known issue and if so, is there a workaround to get it working

  • By Aman Deep Nagpal - 6:06 AM on May 20, 2010   Reply

    PDF iFilter extracts data only from PDF files. For example: if a PDF is attached inside a .msg file, it is the job of iFilter registered for .msg to first extract all the contents, and then hand over the PDF to PDF iFilter.
    If it doesn’t work for .eml files, that would mean that iFilter registered for .eml files is not working correctly.

  • By Lesley - 8:37 AM on May 20, 2010   Reply

    Hi Aman – thank you for your reply. Your suggestion makes a lot of sense. However, when I use Foxit’s PDF iFilter, I am able to index pdf attachments in both msg and eml files using the built-in eml iFilter (I have not made any changes with regards to the eml iFilter). I prefer to use Adobe’s iFilter as my organization does not have the budget for Foxit’s PDF iFilter at this time. With this information, do you still think there is a problem with my eml iFilter and that is the route I should take to solve my problem?

  • By Dennis - 7:00 AM on May 25, 2010   Reply

    I am seeing these files also, Did you ever get any response?

  • By Markus Schacher - 12:00 AM on May 27, 2010   Reply

    Aman – do you have any news about the availability of the PDF iFilter for Windows 7 / 64 bit?

  • By Nicole - 6:53 AM on June 2, 2010   Reply

    Can I get an email update from Adobe when there is a fix available to allow PDF’s to be previewed or viewed as thumbnails on Windows 64 bit?

    • By Maverick - 12:48 AM on June 18, 2012   Reply

      I share the same problem as u do. If u get to know the solution pls let me know as well.

      • By ___________________________________________ - 3:43 PM on June 19, 2012   Reply

        Hi Maverick. Thanks for reaching out. Do you mind letting us know if you’ve had trouble with files created from MS Publisher via PDFMaker or the Adobe PDF Printer?

  • By Joe Tittiger - 6:55 PM on June 4, 2010   Reply

    I just got a laptop with 64 bit Windows 7. I accidentally installed ifilter60.exe and could find no way to install it. So instead I just deleted the folder (C:\Program Files (x86)\Adobe\PDF IFilter 6.0 ) that it was in.
    I tried to uninstall it because PDFFilter64installer.msi hangs with the message “Another installation is in progress. You must complete that installation before continuing this one.
    Thanks in advance for any help!
    Please RSVP

  • By Brian - 2:19 PM on June 15, 2010   Reply

    RE: folders that start with A9R (ie A9R944-9ad9e2), each containing a single pdf file, appearing in the root of C:
    Any updates on this? We’re seeing this as well.

  • By robin - 6:04 AM on June 16, 2010   Reply

    Does the ifilter index pdfs contained within a pdf as attached files? Thanks.

  • By Markus Schacher - 12:37 AM on June 19, 2010   Reply

    Are there any news about the availability of the PDF iFilter for Windows 7/64 bit? It is really annoying to be unable to search for PDF files…
    Thanks Markus

  • By John Wilks - 3:18 PM on June 20, 2010   Reply

    Error 1606 could not access network location

  • By Berto - 12:19 PM on June 25, 2010   Reply

    Win7 64bit Adobe PDF iFilter support? HELLO? ANYONE THERE? ADOBE? ANYONE?!

  • By Arnav Agarwal - 3:49 AM on June 28, 2010   Reply

    Can you please shed some light on how you are saving emails as .eml format, what I see in Outlook 2007 is .msg format only. How are you indexing eml files?
    Please tell the exact steps to replicate this issue.

  • By Arnav Agarwal - 3:54 AM on June 28, 2010   Reply

    Can you please tell how you are saving the emails as eml format, all I can see in Outlook 2007 is msg format, how are you particularly saving the files as eml format and then indexing it through Foxit.

  • By Aman Deep Nagpal - 4:55 AM on June 28, 2010   Reply

    Thank you all for your feedback. Adobe is working on the next version of iFilter which will support Windows 7 64-bit. But we don’t currently have an availability date to share.

    • By Luke - 5:02 AM on August 27, 2010   Reply

      Is there any update on the availability of Win7 64bit Adobe PDF iFilter?

  • By Aman Deep Nagpal - 9:18 AM on June 28, 2010   Reply

    Yes, Adobe PDF iFilter does index PDFs that are added as first level attachments within other PDFs. Second level attachments are not supported.

  • By Brian - 12:27 PM on June 30, 2010   Reply

    Any updates on the A9R folder issue?

  • By Shawn - 12:38 PM on July 21, 2010   Reply

    Need this iFilter update ASAP for Win 7 x64! The current version will not allow Microsoft search to find contents of PDF files. Come on Adobe, Windows 7 has been RTM for almost a year now!!!

  • By Amer - 3:22 PM on August 24, 2010   Reply

    I have downloaded the PDF iFilter64installer, but was prompted that it is not a free update.Moreover,what to do after the download?

  • By Les Latulippe - 7:23 AM on August 26, 2010   Reply

    I have recently updated my SharePoint 2007 system with SP2 and the latest CU. My pdf ifilter had been working properly but now is not. I am not receiving any errors in my event logs. PDF’s are returned in search results, but not when searching for content from within the document. (PDF’s have been created from Word by doing a Save As, so should be able to be crawled internally).
    Please help.

  • By Steve - 6:36 AM on September 7, 2010   Reply

    Do you need to reindex after installing the 64 bit iFilter

  • By Gigi - 8:38 AM on September 8, 2010   Reply

    Is there any information on when the iFilter which will support Windows 7 64-bit Search ?
    Furthermore, I just installed Foxit 2.0 but it doesn’t index lots of PDF files. I come back to Foxit 1.0 which works quite well (no preview unfortunately). Any experience or information about indexation of pdf files on Windows 7 64-bit Search ?
    Thanks in advance for your help.

  • By Chris Tribble - 2:01 AM on October 9, 2010   Reply

    I’d also be interested to know if this works with Windows Search on Win 7 64. It’s really important for my and my students to be able to search batches of journal articles downloaded as PDFs. Thanks for any comments.

  • By Yves - 10:41 AM on October 21, 2010   Reply

    Same question here, when will Windows Search on Windows 7 64 bit will be supported?
    I don’t care if it means a new version of Acrobat Reader or installing an IFilter separately, but I need a solution.

  • By Dave - 11:39 AM on October 22, 2010   Reply

    Same problem as some of the other posters here…not able to search within PDF files for keywords, even after installing the iFilter program and modifying the ‘Path’ variables. Thanks.

  • By Markus Schacher - 11:14 PM on November 21, 2010   Reply

    How long do we need to wait for a IFilter for Windows 7 / 64 bit? Until Windows 8 is released? I really need a solution… Thanks

  • By Carlie - 5:01 PM on January 20, 2011   Reply

    Would really love to be able to view pdfs instead of silly icons and opening files tediously one by one to view. It’s really essential for my graphic based work for me to be able to do this, otherwise it takes so much more time … please hurry with enabling Windows 7 x64bit to do this!!!!

  • By mccrispy - 1:42 PM on February 21, 2011   Reply

    come on guys the need for a Windows 7 x64 compatible iFilter is immediate! In case you hadn’t noticed, there aren’t going to be many (if any) more x32 versions of Windows and more and more systems are 64-bit by default – so you need to get this right *now*

    • By Adobe Acrobat - 5:46 PM on February 23, 2011   Reply

      We’ve passed your feedback along to our developers and appreciate the feedback.

  • By Sandeep Verma - 11:19 AM on November 1, 2011   Reply

    Hi All,

    iFilter9 is compatible with Windows 7 x64bit.
    The technote for the same will be updated soon. However, can’t provide you a timeline for that but you can surely download this from the below mentioned link and start using it-

  • By Adrian - 8:29 AM on January 6, 2012   Reply

    I am experiencing issues with the indexing of PDF’s on Windows Server 2008 64 bit. I have three different environments all with Adobe iFilter 9 installed. Two of these environments return search results where the search term is contained in the binary data but not the readable content of the file. For example searching for ‘endobj’ which is not in the content of any of our PDF’s returns every PDF.

    The third environment however works as expected and returns no results when searching ‘endobj’ whilst still working for terms that truely are found in the content.

    One of the environments which does not work is Windows Server 2008 SP2 64bit. The other two environments (one of which works as expected and one which does not) uses Windows Server 2008 R2 64bit.

    The code querying the indexing server is indenticle on all 3 environments and the same version of Adobe iFilter 9.0.0 is on all three.

    • By Adobe - 4:50 PM on January 17, 2012   Reply

      Hi Adrian, thanks for reaching out.

      Here are some things we’d recommend checking:

      1. After installing the PDF iFilter, it is recommended that you set your system PATH environment variable to the “bin” folder of the “Ifilter” installation. For example, from the “Control Panel\System\Advanced\Environment Variables” tab, append to PATH “C:\Program Files\Adobe\Adobe PDF iFilter 9 for 64-bit platforms\bin\” and then restart the computer.

      2. If you want to confirm everything was installed correctly, open the “Control Panel->Indexing Options->Advanced Options->File Types” and ensure that next to the PDF extension you see PDF Filter.

      3. Install Acrobat/Reader before installing iFilter. If you are upgrading from Acrobat/Reader 9 to 10, follow these steps: uninstall version 9, uninstall iFilter, reboot. Install version 10 and patch, reboot, install iFilter.

      • By Adrian - 6:56 AM on January 27, 2012   Reply

        Thank you for your response.

        Unfortunately these steps have not resolved the matter and still the binary data is being searched and not the content itself on the problem environments.

        Do you have any further suggestions please?

        Thanks in advance.

      • By Adrian - 2:08 AM on February 17, 2012   Reply

        Do you have any further suggestions on this please?


      • By Sven H - 5:56 PM on February 5, 2013   Reply

        Thank you, point 3. alone did the job!

        We have Acrobat Pro X on Win 2003 and we used to be able to read and display the content of PDF files from our small Intranet/VBScript application and using Indexing Server, but sometime in 2011 this function was not working anymore for mysterious reasons. By then we had all our files converted to PDF and we couldn’t read them anymore. We were getting some error prompts at server startup from the PDF application, but we thought we were not going to install Acrobat Reader in addition to the Pro version.

        Now we have installed iFilter based on your advice, and subsequently the latest Acrobat Reader (XI) as suggested by the Microsoft Error Reporting Service, and the files can be read again! Thank you very much!

        • By Acrobat - 8:49 AM on February 7, 2013   Reply

          Thanks Sven! We’re glad you’re enjoying Adobe Reader and the latest iFilter!

  • By Anthony Wong - 8:01 PM on March 8, 2012   Reply

    We found some PDF can’t be search such as made by MS Publishers, did anything can help and check?

    • By Adobe - 1:04 PM on March 9, 2012   Reply

      Thanks for asking. Have you had trouble with PDF files created from MS Publisher via PDFMaker or the Adobe PDF printer?

  • By Mike Finney - 2:50 PM on June 12, 2013   Reply

    Is there anything you can suggest for troubleshooting the ifilter? I installed it in my dev SharePoint environment and it worked immediately with only the simple setup instructions from Microsoft here:
    However, I did the same steps in my production environment but can’t get the search to turn up a single PDF in the results. The full crawl is successful and looks just like the crawl results in the dev farm, but the search results only show pages or word docs or excel files without a single PDF.

    • By joiemikitson - 11:24 AM on June 13, 2013   Reply

      Hi Mike, Can you tell us what operating system you are using when you are having trouble and what version of Acrobat you have?

  • By Do Van Chinh - 9:40 PM on August 17, 2013   Reply


    I have config PDFiFilter 9 for SharePoint server Standard 2010 on W2k8 server R2, I were following the guide at, but it not work when I execute search in content of PDF file. I do not know why, Could anyone suggestion for this?


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