How to check a signed file
Check a signed PDF or package free. See who signed it, when, and whether each signature is qualified. No account, and nothing is kept.
Updated 8 November 2026
Steps
- Open the OkoSign checker. You need no account.
- Choose your file. The checker reads .pdf, .asice and .edoc files.
- Read the answer: who signed, when, and whether each signature is qualified.
What the answers mean
The answer tells you three things. Whether each signature is qualified: made with a qualified certificate, with the same legal effect as a handwritten one. Whether the file was changed after signing, in which case it is not the one that was signed. And whether a signature was found at all: a file with none the checker can read says so.
Nothing is kept
The file is checked and forgotten. The checker keeps no copy and needs no account.