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Merge PDF Files

Documents arrive in pieces — a signed page scanned separately, an appendix from someone else, chapters exported one at a time. This joins them into a single PDF in whatever order you put them, keeping every page exactly as it was. Nothing is re-rendered, so text stays selectable and quality is untouched.

Also known as: combine PDF · PDF merger · join PDF files

Files up to 50 MBTypically under a minute

Encrypted upload · deleted right after conversion

Your files are deleted automatically

Uploads are removed as soon as processing finishes, and converted files are deleted after 1 hour. Read our privacy policy.

How to merge PDF files

  1. Step 1

    Add your PDF files

    Drag up to 20 PDF files into the box, or choose them from your device. Each can be up to 50 MB. Drag them into the order you want.

  2. Step 2

    Press Merge PDFs

    The work happens on our servers, and you can follow its progress.

  3. Step 3

    Download your PDF file

    Your upload is already deleted, and the result is deleted after one hour.

Worth knowing

Password-protected PDFs are refused. Run them through Unlock PDF first: a file that needs a password to open needs that password, while one that only blocks printing or copying unlocks without it. Document properties such as author and title are not carried over, because several files have no single right answer. Page content, bookmarks and internal links are kept.

Why merge PDF files?

  • Combining a scanned signature page back into the contract it belongs to
  • Submitting one file where an application asks for several documents
  • Joining chapters or sections exported separately into a single report
  • Collecting receipts or invoices into one document for an expense claim

What changes

What merge PDF files changes, and what it leaves alone
PropertyBeforeAfter
DocumentsSeveral filesOne file
Page contentOriginalUnchanged
Page sizesMay differEach page kept as-is
TextSelectableStill selectable

Frequently asked questions

Page updated

All PDF converters

Extract a page range from a PDF, or split a document into one file per page.

Remove the password and restrictions from a PDF you know the password for, so it opens, prints and copies without asking.

Merge a mixed set of images — JPG, PNG, WebP, BMP or TIFF — into one PDF.

Turn every page of a PDF into a separate JPG image at the resolution you choose.