Company
Why Interleaf.
PDF tools shouldn't require uploading your documents to someone else's server. Interleaf was built on a simple idea: every PDF operation can happen right in your browser.
No accounts. No subscriptions. No file size limits imposed by a server. Just open the editor, drop your files in, and get to work. Everything runs client-side using modern browser APIs and WebAssembly-powered libraries.
Built as an open-source project to demonstrate that powerful tools don't need to compromise on privacy.
Tech Stack
Astro
Static site framework
pdf-lib
PDF manipulation
pdf.js
PDF rendering
Tailwind CSS
Utility-first styling
TypeScript
Type safety
Bun
Package manager & runtime
Values
Privacy
Your files never leave your browser. Zero data collection.
Simplicity
Clean interface, no bloat. Just the tools you need.
Open Source
Fully transparent. Inspect, modify, and contribute.
Speed
Client-side processing means instant results, no waiting for servers.