In what order are the PDFs merged?

Files are merged in the order they were added to the upload list, top to bottom.

How many PDFs can I merge at once?

You can merge up to 25 PDF files per request, with up to 750 combined pages.

Not yet - password-protected PDFs aren't supported at this time.

Yes. Combining PDF files into one document is completely free, with no signup and no limit on how many files you merge.

Yes, drag the file thumbnails into the order you want before combining them.

All tools

Upload two or more PDFs and combine them into one file, in the order you add them.

Drop the PDFs to merge Add two or more PDFs, they merge in the order listed Choose PDFs

Files merge in the order shown above. Remove and re-add a file to move it to the end.