How to merge PDF files into one

Merge PDFs step by step

1. Open Merge PDF and add all the files you want to combine.
2. Drag the file cards into the order you want them to appear.
3. If a file's pages are sideways, rotate that file.
4. Click Merge PDFs and download the combined document.

Get the order right the first time

The merged file follows the order of the cards, top to bottom. Name your files so they sort sensibly (01-cover, 02-contract, 03-appendix) before adding them, and the cards will often arrive in the right order already.

Mixed page sizes and orientations

Merging doesn't resize pages, so a landscape page stays landscape and a letter page stays letter-sized. If one document looks sideways, rotate it before merging. If the order of individual pages is wrong afterwards, fix it with Organize PDF.

Fixing mistakes after merging

• Wrong page order: use Organize PDF to drag pages into place.
• Pages you don't want: use Remove pages.
• File too large to email: use Compress PDF.

Is it private?

Merge PDF runs entirely in your browser, so your files are not uploaded to our servers.