πŸ”’ Free PDF Encrypt

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πŸ“ Upload PDF File

πŸ“„

Click or drag and drop a PDF file here

Supports .pdf format, recommended file size under 50MB

πŸ”‘ Set Passwords

βš™οΈ Encryption Settings

The encrypted PDF will allow printing (high resolution), copying, annotating, and form filling. Modifying and document assembly are restricted.

❓ Frequently Asked Questions

Is PDF encryption safe?

PDF encryption uses AES-256 encryption algorithm to protect your PDF files. Everything runs locally β€” your files never leave your device, ensuring complete data security.

What's the difference between user password and owner password?

The user password (open password) is required to open the PDF. The owner password controls permissions (printing, copying, editing, etc.). Setting an owner password prevents others from modifying the PDF's permission settings.

Will encrypted PDFs work on all devices?

Yes, using standard PDF encryption algorithms (AES-256 and RC4), encrypted PDFs can be opened in all major PDF readers, including Adobe Acrobat, browser built-in PDF viewers, and more.

What kind of PDFs can I encrypt?

This tool supports encrypting any valid PDF file. If the PDF is already encrypted, we recommend decrypting it first before re-encrypting for compatibility. File size under 50MB is recommended for best performance.