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How to verify the validity of a signature?

There are two ways of verifying the signatures, one is with Ledgy’s appended signature report and the other is with Adobe Acrobat Reader.

There are two ways of verifying the signatures, one is with Ledgy’s appended signature report and the other is with Adobe Acrobat Reader.

Ledgy’s signature report

Ledgy verifies the signatures and appends the verification document to the signed document. Then the whole document is sealed with an electronic certificate issued by Bundesdruckerei Germany. This seal proves the time of signing and proves that the document wasn’t changed since then.
Every document signed via Ledgy’s standard electronic signing (SES) system includes the signature verification report.
If the document is signed with AES or QES, the signature will be placed directly in the original document. If the user forgot to place the signature, it will not show up in the document, however the signature is still valid because of the embedded certificate.

Verifying signatures with Adobe Reader

If you want to check the validity of the signatures independent of Ledgy, you can do so with Adobe Acrobat Reader.

How to verify the signatures

You can verify the signature in Adobe Reader by opening the Signature Panel:

Open the document and click on Choose View > Show/Hide > Navigation Panes > Signatures, or click the Signature Panel button in the document message bar.

Note: You can right-click a signature field in the Signatures panel to do most signature-related tasks, including adding, clearing, and validating signatures. In some cases, however, the signature field becomes locked after you sign it.

When digital signatures are validated, an icon appears in the document message bar to indicate the signature status. You can inspect additional status details in the signatures panel and in the signature properties dialog box.

VerifySignature

Signatures panel for digital signatures

The Signatures panel displays information about each digital signature in the current document and the change history of the document since the first digital signature. Each digital signature has an icon identifying its verification status. Verification details are listed beneath each signature and can be viewed by expanding the signature. The Signatures panel also provides information about the time the document was signed, and trust and signer details.