Is there a limit on how many I can combine?

Only your browser's memory. Dozens of ordinary documents are fine; a handful of very large scanned ones will be the harder case.

Do my documents get uploaded?

No. The merge happens in the page, which is worth knowing if the documents are invoices, contracts or medical records.

Merge PDF

Combine several PDFs into one, in the order you choose. Pages are copied rather than re-encoded, so nothing is recompressed.

Drop the PDFs you want to join

Add two or more. You can reorder them before merging.

About this tool

Combines several PDFs into one, in whatever order you put them. Pages are copied between documents rather than re-rendered, so text stays selectable, images are never recompressed and quality is untouched.

How to use it

1Drop two or more PDFs.
2Reorder them until the sequence is right.
3Merge, then download the single file.

Good to know

Nothing is re-encoded

The page objects themselves are copied across. A merged file is not a flattened picture of the originals; every page is exactly the page it was, and the text in it is still text.

Password-protected files cannot be merged

An encrypted PDF has to be decrypted first, and that needs the password. Remove it in a PDF reader and try again.