Is my password sent to a server?

Never. All encryption operations run strictly in your browser.

Protect PDF - Free Online Tool

or click to browse from your computer or phone. 100% private local processing.

Password:

Confirm Password:

Follow these simple steps to process your files in seconds.

Upload or drag & drop your files securely into the workspace box.

Adjust your custom preferences, format filters, quality, or calculations.

Click execute. Everything runs right in your browser engine with 0 server uploads.

Instantly download your converted document, image, or copy formatted output.

Files are never sent to external servers or cloud databases. Processing happens entirely in your local browser sandbox.

Eliminate upload and download waiting queues. Get immediate results with optimized modern JavaScript & WASM libraries.

No account creation, no subscription paywalls, and no hidden file size limits. Use as many times as you need.

Find quick answers about functionality, security, and usage limits.

Because protection is encrypted, you must remember the password to open the file. We do not store any keys.

Combine multiple PDF files into one unified document in any custom order.

Split a large PDF file into separate documents by custom page ranges.

Reduce PDF file size while maintaining optimum visual clarity.

Rotate individual pages or entire PDF documents 90°, 180°, or 270°.