Verify Signatures
Check whether digital signatures in a PDF are intact and inspect the signing certificates.
Runs in your browserFree · no sign-up
How to use Verify Signatures
- 1
Choose or drop your file
- 2
Adjust the options
- 3
Process and download the result
Good to know
- Checks document integrity and shows signer certificate details. Trust in the certificate issuer is not evaluated against a trust list.
Frequently asked questions
Is Verify Signatures private?
Yes. This tool runs entirely in your web browser. Your files are processed on your device and are never uploaded to our servers.
Is there a file size limit?
Without an account you can process files up to 50 MB. Paid plans raise the limits.
Do I need to install anything?
No. It works in any modern browser on Windows, macOS, Linux, Android and iOS.