How to Merge PDFs for Free

Combine multiple PDF files into a single document — right in your browser, with no uploads and no sign-up.

Your files are processed locally. Nothing is uploaded.

Use This Tool Now

Drop your PDF files below to merge them instantly. All processing happens in your browser.

1
Upload your PDF files
Drag and drop multiple PDF files or click to browse. There is no file size limit.
2
Arrange the order
Drag files to reorder them. You can also rearrange at the page level.
3
Merge and download
Click "Merge" and download your combined PDF. Processing happens entirely in your browser — no server upload.

Your files are never uploaded to a server — everything stays on your device.
You can also add JPEG images, which will be converted to PDF pages automatically.
After merging, you can further compress the result to reduce file size.

How many pages can I merge?

There is no page limit. You can merge as many files as your browser's memory allows. Most modern devices handle hundreds of pages without issues.

Does merging change the file size?

The merged file is approximately the sum of the original file sizes. No quality is lost during merging.

Can I merge password-protected PDFs?

You need to unlock password-protected PDFs first using the Unlock PDF tool, then merge them.

No sign-up required. Your files never leave your device.