Protect PDF With Password

The SolversPro PDF Password Protection Tool is a free client-side encryption utility that secures PDF files with user and owner passwords and granular permission controls with 100% local privacy.

Encrypt your PDF with a password. Set permissions for printing, copying and editing.

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Drop PDF here or click to browse

PDF files only

PDF Standard Permission Flag Reference

Granular security restrictions mapped to Adobe Acrobat / ISO 32000 standard permission bits.

Permission Setting	Allowed Action When Enabled	Blocked When Disabled	Security Level
Printing	High-resolution physical printouts	Print command disabled	Standard
Modifying	Page rotation, extraction, form filling	Read-only document locked	High
Copying	Clipboard text & image copying	Text selection & copy blocked	Content Protection
Annotating	Adding notes, highlights, signature lines	Markup tools grayed out	Standard

Frequently Asked Questions

What is the difference between a User Password and an Owner Password?

A User Password (open password) is required to decrypt and view the PDF. An Owner Password (permissions password) restricts specific operations such as printing, content copying, or editing form fields even if the file can be viewed.

Is my document uploaded to a remote server for encryption?

No. PDF encryption occurs 100% locally within your browser sandbox via JavaScript. Your password and PDF data never leave your device.

Can I selectively restrict printing or text copying?

Yes. You can toggle permission flags for printing, modifying, copying, and annotating independently before generating the encrypted file.