PDF Merger

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Drag and drop your PDF files here or click to browse

About PDF Merger

Free Online PDF Merger: Combine multiple PDF documents into one seamless file instantly. Supports drag-and-drop, custom order, and batch processing.

How to use PDF Merger

To merge your PDFs: 1. Drag and drop your files into the upload area. 2. Rearrange the files in the list using drag-and-drop if you need a specific order. 3. Click the 'Merge PDF' button to start the processing. 4. Download your newly merged file instantly once finished.

How it works

This PDF merger operates entirely in your browser using the pdf-lib library. It loads your files into memory, concatenates the pages into a new PDF document, and generates a downloadable blob. No files are ever uploaded to a server, ensuring 100% privacy and security for your documents.

Privacy & Security

  • ✅ 100% Private: No server-side storage
  • ✅ Fast: Zero upload/download latency
  • ✅ Secure: Sandbox processing environment