Protection & Signatures
Choose a task below. Each example includes a complete project, reproducible input, and checks of its saved result.
- Open and Encrypt Presentations: Open an encrypted presentation with a known password and save encrypted or unencrypted copies.
- Set Editing Protection: Set and remove edit-password protection and read-only recommendations while distinguishing them from encryption.
- Sign and Verify Presentations: Sign a synthetic presentation with a disposable test certificate, then detect a changed signed copy.
- Protect Exported PDF Files: Set a PDF opening password and requested printing permissions during presentation export.