Each time you sign a PDF document using a certificate, the signed version of the document is saved with the PDF. You can access the signed version via the link in the Signatures panel or in the Signature Properties dialog box. The selected signed version of the document then opens in a new PDF document.

You can also compare the selected signed version with the current version. It marks the differences for you and generates a summary of comparison results in a new PDF document.

View previous versions of a digitally-signed document

  1. Open a signed document with multiple digital signatures.

  2. Do any of the following to view signed versions:

    • In the Signatures panel, expand the signature and click Click to view this version (A) to view its signed version. Or, you can click on the signature, and select View Signed Version from Signatures Panel Optionmenu.

    • Right-click on the signature and select View Signed Version from the menu.

    • Right-click on the signature field and select Properties…. In the Signature Properties dialog box, click the General tab and click View Version (B) in the Document Versioning section.

Note: a prompt appears if you are right now viewing the version of the document covered by the selected signature.

Compare the previous signed version to the current version

You can view what changes have been made after the selected signature was applied to the document. It marks all differences between the current version and the signed version of the document covered by the selected signature.  

  1. Open a PDF file and choose Security > Sign/Certify > Signatures panel.

  2. In the Signatures panel, right-click the signature used to compare to the current version of the document and select Compare Signed Version to Current Version.

  3. A page-by-page comparison opens in a new PDF document.


Compare the previous signed version (Right) to the current version (Left).

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