Create digital signatures for PDF documents with PHP


Digital sign PDF documents with PHP

Guarantee PDF document integrity with PHP

The SetaPDF-Signer component allows PHP developers to write programms, which are able to digital sign PDF documents in pure PHP.

Digital signatures in PDF or any other document serves two purposes: The signature guarantees the document's integrity and it allows the recipient to identify the signer of a document.

The PHP component offers the following key features:

  • Completely written in the interpreted PHP language
  • Compatible with PDF documents up to version 1.7
  • Digital sign PDF documents with any Certificate, that is useable with OpenSSL (CLI or PHP build in functions)
  • Sign or Certify Documents
  • Optional signature modules on request
  • Visible signatures
  • RFC 3161 compatible timestamping
  • Easy to understand usage
  • Extendable via individual modules.

In Action [See all demos]

Digital Signature With a Timestamp

Add a trusted time stamp to the digital signature.

Document level timestamp

Add a document level timestamp to a PDF document.

More demos are available here.



If you are searching for a feature or have any question regarding this or any other product, feel free to contact us at

Do you like this product?

Then it would be awesome, if you‘d recommend it to your friends!