Check a document in seconds.
Every DocuCraft signature comes with a SHA-256 seal. Upload the PDF, paste its fingerprint or scan the QR code on its certificate: if a single character has changed, you’ll know.
Free, no accountYour file never leaves your deviceShows who signed and when
Drop a sealed PDF, or paste its fingerprint.
Good to know.
What is a SHA-256 fingerprint?
A 64-character code calculated from every byte of the file. The same file always gives the same code; change one character and the code is completely different.
The check failed. Is the document fake?
It means the file isn’t exactly the one that was sealed. It may have been edited, re-saved or printed and scanned. Ask the sender for the original PDF.
Do I need an account?
No. Verification is free and open to everyone.