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June 26, 2008

A Different Perspective on Digital Signatures with Reader 9

Adobe Reader 9 offers a great new perspective on Digital Signatures and how they are viewed by end-users. You will notice that the validity of the signature is no longer indicated by an icon directly on the signature itself (the famous yellow triangle). Instead, you will find a new bar provided at the top of the PDF indicating the validity and status of the signatures on the form. For additional detail on individual signatures a new side-bar gives you a full view of individual signature status along with form changes that may have occured between signatures (for example).





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Posted by Lee Sutton at 3:18 PM | | Comments (0)

June 2, 2008

Clearing a Signature Field on an Invalid Document

If you would like to ensure that users do not apply Digital Signatures to incomplete forms, after the signature is applied, reset the Signature field using the "resetForm" method along with the full name of the signature field:

var doc = event.target;
doc.resetForm("XMLExampleForm[0].XMLExamplePage1[0].SignatureField1[0]");

In this example the user must enter the Name field to apply a valid signature. If the Name is removed or the Name is not entered, the signature field is cleared.


Posted by Lee Sutton at 9:33 PM | | Comments (0)

March 20, 2008

Please Sign Here in Workspace

If you would like to enable Digital Signatures on a PDF that is going to be passed to different users through a LiveCycle ES Process, here are a few short guidelines for you.

On the form itself:

  • The form must be a PDF

  • Keep in mind that the DigSigs are applied to the PDF so the hidden submit field on your PDF form must submit a PDF and not an XDP or you will just be submitting the data of the PDF

    • In the process design:

  • The required input field to the process must be of type Document Form

  • Change the render service to the sample render service (and the associated variables should be corrected)

  • In the advanced setting be sure that the “call the render service only once” is checked – if not, the form will be refreshed and signatures removed each time the form is displayed in Workspace

    • If you would like a sample of a PDF Form and a Process including a Digital Signature, feel free to download this LCA (LiveCycle Archive for Adobe LiveCycle ES) https://share.adobe.com/adc/document.do?docid=b71a87c5-f6a8-11dc-8d05-e593509263b8

    Posted by Lee Sutton at 3:04 PM | | Comments (0)

    December 6, 2007

    Accessing Properties of a Digital Signature

    If you would like to display the properties of a Digital Signature on your form, or have your form react to the change of a signature, here is a quick sample that should give you a head-start. The second signature on the form will not appear until the first signature field is signed.

    Posted by Lee Sutton at 8:44 PM | | Comments (0)