For a digitally signed document (which might have been signed several times), you can view the differences (if any) between a signed version and the current version you have.
To compare a signed document with the current version, do as the following:
- Open the current version you have with Foxit PDF Editor.
- Right-click the desired signature in the document pane with the Hand command and choose Compare Signed Version to Current Version from the context menu.
A PDF document with the comparison result named “Untitled.pdf*” will be automatically created and opened in a new tab within Foxit PDF Editor, and the Compare Results tab appears on the ribbon. The results document arranges pages side by side showing the two versions with the changes marked by different icons and colors. The first page and the second page show a summary and details of the comparison results respectively. See also Compare PDF Files.
If the document has not been modified since the selected signature was applied, a prompt appears saying you are already viewing the version covered by the selected signature.