No upload · 100% local
Protect PDF Add Password
Add 128-bit AES password protection to any PDF. Set a password and we encrypt it instantly — all inside your browser.
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Drop your PDF or browse
Single PDF file · Max 100 MB
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Remember your password
There is no way to recover a forgotten password. Keep it somewhere safe before sharing the protected PDF.
STEP 01
Drop your PDF
File stays on your computer. Zero uploads.
STEP 02
Set a password
Encrypted with 128-bit AES in your browser.
STEP 03
Download
Password-protected PDF. Ready in seconds.
Why NoServerTools?
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Zero uploads
We never receive your files.
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Zero storage
Nothing saved anywhere.
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Zero tracking
We don't know what you process.
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Works offline
Once loaded, no internet needed.