Password Protect PDF Files Online
Encrypt, unlock, or flatten PDF files with server-side security tools.
Upload & Secure
Upload one PDF and choose the security operation.
AES-256
Upload your PDF
Drag & drop or click to browse
PDF
Encrypt, unlock, or flatten PDF files with server-side security tools.
Upload one PDF and choose the security operation.
Upload your PDF
Drag & drop or click to browse
Add password protection and AES-256 encryption to your PDF files in seconds. Prevent unauthorized access and control who can open, copy, or print your sensitive documents.
Yes. PDFKit adds AES-256 password protection to PDF files directly in your browser workflow — no software installation needed.
PDFKit uses AES-256 encryption, the same standard used by governments and financial institutions for securing sensitive data.
You can remove a password from PDFs you own when you have the access credentials. Use the "Unlock" mode in the protect tool.
Yes. You can set user permissions to restrict printing, copying text, and editing while still allowing the document to be opened with a password.
All uploads are processed over HTTPS on secure servers. Files are deleted immediately after processing and are never stored longer than necessary.