Check a document

Has this PDF changed since it was signed?

Choose a PDF signed with SimpleSign365. The check confirms the seal and shows the signing history. Anyone can use it, no account needed.

Choose where the sender stores their documents. If you are not sure, start with the EU: the check points you to the US when the document is not found there.

Your browser computes a fingerprint of the file and sends only that fingerprint; the file itself never leaves your device. A PDF reader such as Adobe Acrobat also shows the seal and whether the file was changed.