offlinewebtools.com — free, watermark-free browser tools that stay on your device with nothing uploading to our servers

Protect PDF with Password

Free PDF protection tool. Add password protection and set permissions for your PDF documents to control printing, copying, and editing — all in your browser.

Free to use, no watermarks, runs in your browser—nothing uploads to our servers

Upload PDF file

Select a PDF file to add password protection and set permissions.

Drag & drop files or browse

Supports: application/pdf Up to 1 file.

Tip: Choose a strong password (at least 10 characters) for better security. Remember to store your password safely — you'll need it to open the PDF.

Report a bug

If this tool misbehaves, share a quick summary so we can investigate. We include the tool URL automatically—no need to copy and paste.