How to Merge Multiple PDFs Into One File

Merging PDFs turns a scattered set of documents into one file that is easy to send, sign, or print. It is one of the most common PDF jobs and one of the quickest.

Why merge PDFs

A contract split across three files, a report plus its appendices, or a stack of scanned receipts all read better as one document. One file is also simpler to attach to an email or upload to a portal that accepts a single PDF.

How to merge PDFs

  1. Open the Merge PDF tool.
  2. Add all the PDFs you want to combine.
  3. Drag them into the order you want.
  4. Download the merged file.

The merge happens in your browser, so sensitive documents are never uploaded.

Get the order right

  • Arrange files before merging. It is faster than fixing the order afterward.
  • If a file has pages in the wrong sequence, fix it first with Reorder PDF Pages.
  • Remove pages you do not need by using Split PDF beforehand.

Keep the final file light

Merging can produce a large file, especially with scanned pages. Run the result through Compress PDF to shrink it before sending.

Frequently asked questions

Can I change the order of files before merging?

Yes. Drag the files into any order you like, and the merged PDF follows that sequence.

Is there a limit on how many PDFs I can merge?

You can merge as many as your device handles comfortably. For very large jobs, merge in a couple of stages.

Are my documents uploaded to merge them?

No. Merging runs in your browser, so your files stay private.

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