Merge PDF
Combine multiple PDFs into a single document in the order you choose, with optional bookmarks and a table of contents.
Runs in your browserFree · no sign-up
How to use Merge PDF
- 1
Add two or more PDF files
- 2
Drag them into the order you want
- 3
Merge and download the combined PDF
Good to know
- Files are merged in the order shown. Drag to reorder before merging.
- Form fields with identical names in different files are kept as separate copies where possible.
Frequently asked questions
Can I merge PDFs with different page sizes?
Yes. Pages keep their original size by default, or you can normalize every page to the first page's size or a standard size such as A4.
Is Merge PDF private?
Yes. This tool runs entirely in your web browser. Your files are processed on your device and are never uploaded to our servers.
Is there a file size limit?
Without an account you can process files up to 50 MB. Paid plans raise the limits.
Do I need to install anything?
No. It works in any modern browser on Windows, macOS, Linux, Android and iOS.