AdES PDF signing

Draw or type each signer’s name, place fields on the PDF, then apply a real PKCS#7 signature with a demo certificate (not in any public trust chain).

Try platform — not a qualified trust service

Signatures use a self‑signed demo certificate generated for try.logiHash.com. Acrobat and other viewers will show the cryptographic signature, but the certification path is not anchored in public root programs — the same pattern as real AdES structurally, without qualified legal status.

To attach the PKCS#7 seal, the prepared PDF is sent once to this site’s server for signing only. It is not stored or logged; keep using this feature only for non‑sensitive test documents.

Document

Only PDF documents are supported — the standard format for PAdES / AdES workflows in production systems.

Drop your PDF here

or click to browse

How this demo works

Upload a PDF.
For each signer, choose which pages they sign (all, odd, even, or custom).
Draw or type each signature, set position on those pages (same everywhere or per page), adjust size, then preview before download.
We merge graphics and try.logiHash.com branding, then seal with a real PKCS#7 profile (demo certificate).
Download the signed PDF — viewers may report an unknown or untrusted chain, which is expected.