Question 1

Does PDF Protect Local upload my files?

Accepted Answer

Yes. PDF Protect Local runs in your browser using WebAssembly and Web Workers. Open DevTools → Network while using the tool to confirm behavior. Works offline after the page loads.

Question 2

How does PDF Protect Local process files?

Accepted Answer

Open DevTools → Network while processing a file to confirm no document bytes are uploaded. Supported tools can also run offline after the page loads.

Question 3

Is PDF Protect Local free?

Accepted Answer

Yes. PDF Protect Local is free with no signup. Pro unlocks batch processing, lossless export, and industry templates.

Question 4

How do I use PDF Protect Local?

Accepted Answer

Open https://aladdin-agent.net/zh-cn/protect-pdf, upload or paste your input, then follow the on-screen steps. Add password protection to PDFs in your browser.