Skip to content
SmartPDF Tools

Password Protect PDF (AES-256)

Encrypt your PDF with standards-compliant AES-256 (PDF 2.0 R=6) user and owner passwords.

Secure server processing

Encrypted upload, auto-deleted

Fast Processing

Results in seconds

Drag & drop your files here

Or click below to browse from your computer or phone (.pdf)

Tool Configuration

About this tool

Uses pikepdf / QPDF cryptographic encryption (`R=6` AES-256) so unauthorized users cannot open or extract pages without entering your secret password.