Acrobat/Reader7: how to disable the “Keep forms data temporarily on disk” option


 If you are using Reader 7 you may want to disable the option “Keep forms data temporarily on disk“.


 This prevents form data being cached on the local disk, which may pose data integrity/security risks to enterprise customers.


There are a few workarounds to disble this functionality:

1. create a registry key to disable the option automatically:

The location is [HKEY_CURRENT_USER\Software\Adobe\Acrobat Reader\7.0\Originals].

Create the key named bCacheFormData.

Create a dword value of 00000000.

Close registry and relaunch Acrobat/Reader.

2. Another option is to control this in the form itself using JavaScript

From the Acrobat JavaScript Scripting reference available at

this.nocache = true; 

This will only have an affect in the form context.

3. Your third option is to use the Web browser settings:

Set the preference “Do not save encrypted pages to disk” as checked.

Empty Temporary Internet Files Folder when browser is closed.

Additional Information

 This setting has been disbled by default in Acrobat/Reader 8.0 and later versions.

reference: (1-29705311)

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