OnDevicePDF - Offline PDF Tools

Merge, split, and compress PDFs instantly. 100% offline. Files never leave your device.

OnDevicePDF is a hyper-fast, secure, local-first PDF editor for your browser. Traditional PDF extensions and cloud tools upload your private, sensitive documents to third-party servers. We think that's a massive security risk. OnDevicePDF processes everything locally on your machine. Your personal files, financial records, and medical documents never leave your computer. We don't have servers, we don't have databases, and we don't spy on your documents. Features: • Zero-Upload Architecture: Complete privacy. Everything happens in your browser memory. • Instant Editing: Merge, split, edit, compress, and convert PDFs locally without waiting for upload/download cycles. • Offline Capable: Process files even without an active internet connection. • Fully Client-Side: Powered by modern WebAssembly and local JavaScript. Why trust us? Because we can't see your data even if we wanted to. Get the peace of mind you deserve while handling your documents.