PDF Security documentation

PDF Security is an SDK that enables you to add digital signatures to PDF documents, encrypt and, if the passwords are known, decrypt PDF documents. It can set and cancel all known PDF user authorizations.

Shell

Use the command line to add digital signatures and encrypt PDFs.

API

Send API calls to add digital signatures and encrypt PDFs.

See it in action!

Check out the code samples for examples on how to use PDF Security.

Documentation for other versions

PDF Security is no longer available as a service. For existing customers, access the Service version developer guide.