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Free tools · PDF

Merge PDF

Up to ten documents, in the order you set, into one file.

Free · no sign-up · no watermark · up to 50 MB · uploads deleted after 24 hours, results after 7 days.

How to merge pdf

  1. Drop two or more PDFs, or add them one at a time.
  2. Drag the files into the order you want them to appear.
  3. Press Merge and download the combined document.

What happens to your file

Pages are appended in your order, exactly as they are: page sizes, rotations, text layers, links and annotations come through untouched.

Fonts embedded in each source stay embedded, so nothing is re-flowed or substituted. The result is usually about the sum of the inputs.

Encrypted sources are refused rather than silently skipped — unlock them first.

Questions

How many PDFs can I merge at once?

Ten per merge. For more, merge in two rounds — the output of the first is a normal PDF.

Can I change the order after dropping the files?

Yes. Drag the cards into place, or use the arrows on each card with a keyboard. The order on screen is the order in the file.

Do bookmarks and links survive?

Links inside pages do. Bookmark outlines from each source are kept where the source had them.

Can I merge pages from the middle of a document?

Split it first with the Split PDF tool, then merge the parts you want.

Do this in code

curl -X POST https://api.fylane.dev/v1/jobs \
  -H "Authorization: Bearer $FYLANE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "file_id": "<file id>",
    "operation": "pdf.merge",
    "options": {
      "file_ids": [
        "<second file id>"
      ]
    }
  }'

The same operation, pdf.merge — Up to ten documents combined into one. Upload first with the quickstart; every option is on the operations page. 500 free credits a month, then $5 per thousand.