Every document signed through DocFila is sealed when the signing completes, and its SHA-256 fingerprint goes into a hash-chained evidence trail — so anyone holding the signed file can check that it is the one DocFila sealed, unchanged.
Sign any document in DocFila with our standard e-signature flow. Nothing changes for you.
When the last field is signed, DocFila seals the finished PDF with a digital signature over the whole file and records its SHA-256 fingerprint. DocFila also keeps the signed PDF so the sender and signers can download it.
The fingerprint is stored with a server timestamp and chained to the previous entry in the envelope's evidence trail, so a later edit to the record breaks the chain. Cost to you: zero.
Anyone holding the signed file can check it at www.docfila.com/verify for as long as DocFila keeps the record. A PDF reader that checks signatures can also show whether the file changed after it was sealed, without DocFila.
A hash-chained evidence trail records when the request was sent, opened, consented to, and signed or declined, with server timestamps, and the SHA-256 fingerprint shows whether the file has changed since it was sealed.
The signing record is kept on DocFila's servers, so the check at /verify relies on DocFila. The seal inside the PDF does not: a PDF reader can show whether the file changed after sealing. It will not show the seal as trusted, because its certificate is made by DocFila for that one document, not issued by a certificate authority.
The public check sends only the file's fingerprint, never the file. A match shows when the signing completed and how each signer was authenticated — no names, no email addresses.
Notaries charge a fee for each notarization. DocFila Verify carries no per-document fee.
A notary witnesses an in-person signature and stamps the paper. DocFila Verify records a SHA-256 fingerprint and a hash-chained audit trail at signing time — no in-person meeting, no paper. The two answer different questions: a notary attests to who signed, the fingerprint shows whether the file has changed since. Verify is not a substitute for notarization where the law requires one. Where the stakes are high, use both.
Keep going with the document workflow that matches this page. Open the tool you need, then finish the file in DocFila.