Understanding PDF Security: Digital Signatures, Encryption, and DRM PDF documents are widely used for sharing and distributing information. However, protecting these documents from unauthorized access, modifications, and copying is crucial. Various security measures exist, including digital signatures, encryption, and Digital
How to Modify PDF Security Settings and Control Access After Sending
When you send out a PDF document, you often hope that the security settings you applied will cover all scenarios. However, there are times when you need to update those settings, either to restrict access, modify the expiry date, or