# Verifying Signatures

You can verify whether a document has been modified after a signature was added to it, and whether the certificate used for the signature is trustworthy. For binders, signatures of the entire binder will be verified. Perform the following procedure in Viewer.

- Verifying signatures from the signature pop-up menu
- Verifying signatures in InfoView

## Verifying signatures from the signature pop-up menu

In document view, split document view, or page sorter and document view (document view side) of Viewer, display the signature to verify and perform the following procedure. You can verify signatures one by one, or all signatures in a document at a time.
Procedure
1.
To verify a single signature, right-click the signature to verify, then select [Verify the Signatures] from the pop-up menu.
To verify all signatures, display the pop-up menu of any signature, then select [Verify all the Signatures].
After verification is made, a mark indicating the verification status is added to each signature.

## Verifying signatures in InfoView

Perform the following procedure in the [Signature List] tab of the InfoView in Viewer. You can verify signatures one by one, or all signatures at a time.
Procedure
1.
Select the [Signature List] tab in the InfoView in Viewer.
A list of signatures appears.
2.
To verify a single signature, right-click the signature to verify, then select [Verify Signature Status] from the pop-up menu.
To verify all signatures, display the pop-up menu of any signature, then select [Verify All Signatures].
After verification is made, the verification status is indicated under [Status] in the list. Also, a mark indicating the verification status is added to the signature in the page.