Private AI Tools

Free Merge PDF

Merge PDF combines several PDF files into one document in the order you choose. Drag the files to reorder them, keep only the pages you need with ranges such as 1-3, 5, and download the merged PDF at once. Page content, links and annotations are kept, but bookmarks and form fields of the original files are not copied.

Input:
Two or more PDF files
Output:
One merged PDF
Page selection:
Ranges such as 1-3, 5, 10-
Price:
Free
Runs:
Locally, in your browser
Uploads:
None: files never leave your device
Account:
Not needed

Quick answers

Are my PDFs uploaded to a server?

No. The files are read and merged inside your browser, so they never leave your device.

Can I merge only some pages of a file?

Yes. Type the pages you want in the field under the file name, for example 1-3, 7 or 10- for page 10 to the end. Leave it empty to include every page.

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Processed on your device: your files are never uploaded. How it works

How to use the Merge PDF

  1. Drop your PDF files or click to choose them (you can add more later).
  2. Drag the cards, or use the arrows, to put the files in order. Optionally type page ranges such as 1-3, 5 to take only some pages.
  3. Name the output and click Merge PDFs: the combined file downloads right away.

Read the full guide: How to merge PDF files for free, without uploading them

Credits & open source

Built on open-source libraries. Thank you to the people who make these projects.

  • pdf-libCreate and modify PDF documents (merge, split, rotate, stamp, sign). © Andrew Dillon · MIT
  • PDF.jsRenders PDF pages to images and thumbnails. © Mozilla Foundation and contributors · Apache-2.0
  • dnd kitAccessible drag-and-drop reordering (mouse, touch and keyboard). © Claudéric Demers · MIT

Web platform APIs used: File API, Canvas 2D, Web Workers, Pointer Events, Keyboard Events.

Full license texts: third-party notices · all credits

Frequently asked questions

Why is one of my files refused?

Password-protected or permission-restricted (encrypted) PDFs can't be modified in the browser. Remove the protection with the program that created the file, then add it again.

Are bookmarks and form fields kept?

Page content, links and annotations are kept, but bookmarks and interactive form fields of the original files are not copied into the merged document.

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