Merge PDF

Combine multiple PDF files into one document.

📄 Drop PDF files here or click to browse Select multiple files at once

Merging PDF Files

This tool combines multiple PDF documents into a single file. Drop your files into the upload area, reorder them as needed using the arrow buttons, and click Merge. The combined PDF preserves all pages, formatting, links, and bookmarks from the originals.

Unlike many online PDF tools, this merger runs entirely in your browser using the pdf-lib library. Your files are never uploaded to a server, which means your documents stay private and processing is instant. The tool works well with contracts, reports, scanned pages, and any standard PDF files.

Verify Your Privacy

You can confirm that your files never leave your device. Open your browser's Developer Tools (F12 or Cmd+Option+I on Mac), go to the Network tab, and clear the log. Then drop a file and click Merge. You will see no outgoing requests to any server — all processing happens in JavaScript on your own machine.