A student-built experiment in rethinking document privacy on the web.
Most online PDF tools upload your private documents to heavily-monitored servers just to process them. We believe that's fundamentally broken. LocalPDF is different.
We rebuilt the entire PDF processing engine to run directly inside your web browser using modern WebAssembly and JavaScript APIs. When you merge, split, compress, or protect a document, the heavy lifting happens immediately on your own processor. Your sensitive data never leaves your computer, and we never see it.
Speed is a feature. Privacy is our promise.
Zero server uploads. No accounts. No tracking. Your documents remain strictly confined to your device's local memory.
By skipping the network upload and download phases entirely, LocalPDF operates orders of magnitude faster than cloud alternatives.
Passwords for protecting documents are utilized directly on your CPU to generate secured byte arrays, making man-in-the-middle attacks impossible.
Built with Next.js 15, Web Workers, and state-of-the-art browser APIs to deliver native app performance on the web.
