About PDFzUP

Your trusted online PDF toolkit

PDFzUP is a free, privacy-first PDF toolkit that runs entirely in your browser. We believe that working with PDFs should be fast, secure, and accessible to everyone.

Our Mission

We’re on a mission to provide high-quality PDF tools that respect your privacy while delivering professional results. No account required, no file uploads, no tracking—just powerful tools when you need them.

Privacy First

All processing happens locally on your device. We never upload or store your files on our servers. Your documents remain completely private and secure.

When you use PDFzUP:

  • ✓ Files never leave your browser
  • ✓ No server uploads or storage
  • ✓ No registration required
  • ✓ No tracking of your documents
  • ✓ Complete privacy and security

Why PDFzUP?

🔒 100% Secure

Your files are processed entirely in your browser using modern web technologies. We can’t access your documents because they never reach our servers.

⚡ Lightning Fast

Client-side processing means no upload/download delays. Work with your PDFs instantly, even with large files.

🌍 Works Everywhere

No installation needed. Works on any device with a modern web browser—desktop, tablet, or mobile.

💰 Completely Free

All tools are free to use, forever. No subscriptions, no hidden fees, no premium tiers.

Our Tools

We offer a growing collection of PDF tools:

  • Merge PDF - Combine multiple PDFs into one document
  • Split PDF - Extract pages or split into multiple files
  • Compress PDF - Reduce file size while maintaining quality
  • And more coming soon!

Technology

PDFzUP is built with:

  • Astro - Modern static site generation
  • pdf-lib - Powerful in-browser PDF manipulation
  • PDF.js - High-quality PDF rendering
  • Web Workers - Non-blocking, responsive UI

All processing happens using WebAssembly and modern browser APIs, ensuring maximum performance and security.

Open Source Commitment

We believe in transparency and the open-source community. While our codebase is currently private, we use and contribute to open-source projects that make PDFzUP possible.

Contact Us

Have questions, suggestions, or feedback? We’d love to hear from you!

Email: [email protected]

Support Our Mission

PDFzUP is free and always will be. We’re supported by ethical advertising that respects your privacy. If you find our tools helpful, consider:

  • Sharing PDFzUP with others who need PDF tools
  • Providing feedback to help us improve
  • Supporting the open-source projects we use

Thank you for choosing PDFzUP. We’re committed to providing the best free PDF tools while respecting your privacy every step of the way.