Your file never leaves your device
Last Updated: July 2026
Protect PDF with Password
рдкреАрдбреАрдПрдл рдкрд░ рдкрд╛рд╕рд╡рд░реНрдб рд▓рдЧрд╛рдПрдВ тАФ рдмрд┐рд▓реНрдХреБрд▓ рдореБрдлрд╝реНрдд, рдмрд┐рдирд╛ рдЕрдкрд▓реЛрдб рдХреЗ
Securely lock your PDF files with military-grade 128-bit encryption. Works completely offline so your confidential files are never uploaded.
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Drop your PDF here to lock securely (No Upload)
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Browse FileWatch the 100% Offline Proof
See exactly how DocTijori uses browser memory with zero network calls. We open Chrome DevTools live to prove no data is uploaded.
Frequently Asked Questions
The safest way to password protect a sensitive PDF is by using a 100% offline tool like DocTijori. Standard online lockers upload your file and password to remote servers. DocTijori applies AES-128 bit encryption entirely inside your browser's local RAM, meaning zero data is ever uploaded.
DocTijori uses WebAssembly (WASM) to run cryptographic algorithms directly on your CPU. Once the page loads, you can turn off your internet connection and lock your files locally. Your password is never transmitted over the network.
DocTijori is optimized for securing standard PDFs under 100MB. Because it relies purely on local hardware without cloud servers, maximum file sizes depend entirely on your device's available RAM.
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Our Privacy Promise
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Your files are processed only on your device. We have zero access тАФ ever.
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