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Merge PDF files without uploading

Combine multiple PDFs into a single document.

Files stay on your device

Drop your PDF here, or click to choose

Files are processed on your device — nothing is uploaded.

Choose files

How to merge PDF files

  1. Drop the PDFs you want to combine — or click to choose them.
  2. Drag the thumbnails into the order you want.
  3. Click Process. Your merged PDF downloads instantly.

Your files never leave your device — merging runs entirely in your browser.

Frequently asked questions

Do I have to upload my files to merge PDFs?
No. Merging happens entirely in your browser — your PDFs are processed locally on your device and are never uploaded to any server.
Is this PDF merger free?
Yes. Merging PDFs is completely free — no account, no sign-up, no watermarks, and no limit on the number of files.
Can I merge PDFs offline?
Yes. Because everything runs in your browser, once this page has loaded you can merge PDFs even with no internet connection.
Can I reorder the files before merging?
Yes. Drag the thumbnails (or use the arrow buttons) to set the order before you merge.
Is it safe to merge confidential or sensitive PDFs?
Yes. Since your files never leave your device, merging confidential documents here is as private as doing it on your own computer.
Is there a file limit?
There's no hard limit, but very large files depend on your device's available memory.