100% Client-Side PDF Workspace
Combini was created with a simple yet powerful goal in mind: to build a fast, modern, and absolutely secure PDF editor that operates entirely inside your web browser.
Most online PDF tools force you to upload your sensitive personal documents, contracts, or tax sheets to remote cloud servers. This exposes you to potential data leaks, server compromises, or silent tracking. Combini solves this problem by using state-of-the-art WebAssembly and HTML5 technologies to execute every file operation right on your device. Nothing gets uploaded. Your data is yours.
We leverage open-source libraries to ensure high fidelity and performance without compromising your privacy:
A JavaScript library for creating and modifying PDF documents. It handles all page copying, merges, and rotations.
Built by Mozilla, this renders PDF documents into HTML5 Canvas, powering Combini's live workspace preview.
Designed for rapid loads, maximum performance, and a completely responsive, minimal bundle size.
We are continuously improving Combini. If you run into issues, have feature requests, or want to share feedback, please reach out to us at our dedicated inbox. We usually reply within 48 hours.
Direct Email Inquiry