Security · PDF
Protect PDF
Password-protect a PDF before you share it — encryption runs locally.
How to use
- Upload a PDF.
- Enter and confirm a password.
- Download the encrypted file.
Features
- AES-256 encryption
- User password required to open
- Runs in your browser. PDFs are not uploaded to ToolsWeb servers.
Privacy & how it works
This PDF tool runs in your browser with client-side libraries. Your files are not uploaded to ToolsWeb servers for this tool. Very large PDFs may be limited by your device memory. Privacy Policy.
FAQ
Can ToolsWeb recover my password later?expand_more
No. We never see your file or password. Store the password safely — lost passwords cannot be recovered here.
Is this tool free?expand_more
Yes. ToolsWeb tools are free to use with no signup and no paywall for core features.
Do I need an account?expand_more
No. Open the tool and start. We do not require registration for supported tools.
Are my files uploaded?expand_more
No for this tool. Processing runs in your browser. See Privacy & how it works on this page and our Privacy Policy for what network requests still occur when loading the site.
Does it work on mobile?expand_more
Yes on modern mobile browsers. Very large files may hit device memory limits sooner than on desktop.