PDF Security Tools
Sign, unlock, and redact documents
Most Popular PDF Security Tools
All PDF Security Tools
Why choose SAMAST?
The ultimate platform for secure, local processing.
100% Free
Fully Secure
Works Offline
No Registration
Lightning Fast
Browser Based
Zero Tracking
No Limits
About PDF Security Tools
Welcome to the PDF Security utilities section on SAMAST. Here you will find a curated collection of powerful client-side tools designed to handle tasks related to sign, unlock, and redact documents.
Because SAMAST runs entirely in your browser using modern WebAssembly and JavaScript technologies, you never have to worry about your files or data being uploaded to a third-party server. All pdf security processing happens instantly and securely right on your device.