Merge PDF Files Online, Free
Combine two or more PDF files into a single document, in whatever order you choose. No sign-up, no watermark, and your files are never uploaded to a server.
How to merge PDF files
Add your files
Click the box above or drag and drop the PDF files you want to combine.
Set the order
Drag the thumbnail cards to arrange the files in the order they should appear.
Merge & download
Tap "Merge Files" and download the combined PDF straight to your device.
Why use this tool
Most online PDF mergers upload your files to a remote server before processing them, which can be slow and raises privacy questions for personal or official documents. This tool runs entirely inside your browser using JavaScript — your files are read, combined, and saved on your own device, and are never transmitted anywhere. That also means it keeps working even on a modest internet connection, and there is no limit on how many times you can use it.
Frequently asked questions
Yes. The tool is completely free, with no limit on the number of times you can use it and no sign-up required.
No. Every file is processed locally inside your own browser using JavaScript. Your PDFs never leave your device.
Yes. Drag the thumbnail cards to set the order you want — files combine in that exact order.
There's no fixed limit from the tool. Since processing happens on your device, the practical limit depends on your browser and device memory.
No. Pages are copied directly from the originals, so text, images, and formatting stay exactly as they were.