pdfzus

What is pdfzus?

A simple web tool that merges PDFs and images right in your browser. All work runs locally via WebAssembly, so your files never leave your device. No registration, no watermarks, and three compression options let you control file size. It supports drag-and-drop sorting, batch uploads, and works offline after the first load. Built with privacy-first defaults and German (DSGVO) standards in mind.

Key features

• Merge PDFs and images locally in the browser with drag-and-drop.
• All processing runs client-side via WebAssembly with no uploads.
• Free to use without registration or watermarks on output files.
• Three compression levels let you balance quality and file size.
• Supports batch uploads and visual page reordering before export.
• Works offline after first load and respects German privacy rules.