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AiTechWorlds
AiTechWorlds
Encrypt a PDF with a password and set printing/copying permissions — AES encryption, 100% in your browser.
Drag a PDF here or click to upload
100% in-browser — your PDF never leaves your device. The PDF is encrypted with AES; readers must enter the password to open it. Keep your password safe — it cannot be recovered.
Protect PDF encrypts a PDF with a password using AES, so only people with the password can open it, and lets you restrict printing and copying. Encryption runs entirely in your browser — your document is never uploaded, unlike server-based competitors.
Upload your PDF
Drag the PDF in or click to select it.
Set a password
Enter and confirm a password, and choose any restrictions.
Download
Get the encrypted PDF; readers must enter the password to open it.
100% Private — No Server Required
All processing happens directly in your browser. No data is uploaded, stored, or transmitted to any server.
Last reviewed on June 19, 2026 by the AiTechWorlds Tools Team. All processing runs locally in your browser.
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