What kind of protection can I add?

You can set an open password (required to view the file) and restrict printing, copying, and editing.

Is encryption strong?

The tool applies 128-bit RC4 or 128-bit AES encryption depending on the PDF version.

No. Password protection is applied securely in your browser without uploading.

PDF

Protect PDF

Add a password and restrict permissions on PDF files.

Click or drag & drop

PDF files only

Passwords

Set passwords to control access and editing.

Open password *

Owner password (optional)

Permissions

Control what recipients can do with the PDF.

Allow printing

Recipients can print the document

Allow copying text

Recipients can copy text from the document

Upload a PDF to protect with a password.

Uses 128-bit RC4 encryption. The owner password controls permission restrictions — leave blank to use the user password as owner password.

PixTrimIO keeps PDF and image workflows fast, privacy-friendly, and browser-based. Privacy-first PDF and image tools that run entirely in your browser. Compress, merge, convert, crop, OCR, and edit files online for free without uploading.