Extract, inspect & repair
Was this PDF changed?
Check whether a PDF has digital signatures, was saved over after signing, or was edited after it was created. A quick read of the file's own records, on your device.
or drop it here
Processed on this device. Nothing is uploaded.
How it works
- 1Add a PDF.
- 2Read the findings.
Your file stays on this device
PDF Tools does the work inside your browser. Your file isn't uploaded or stored, and the site is technically blocked from sending it anywhere.
See how to check it yourselfGood to know
- This shows that a file was changed. It can't prove a file is genuine, and it doesn't check a signer's certificate.