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Merge PDF

Combine multiple PDF files into one document in the order you choose. Free, no upload, no watermark, no page limit.

Runs in your browser
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About the Merge PDF

Join contracts, invoices, scans and reports into a single PDF. Add as many files as you like, reorder them with the arrow buttons and download one merged document. Page content, links within pages and page sizes are preserved exactly.

Your PDF is processed in your browser with pdf-lib and never uploaded.

How to use it

  1. Add two or more PDF files.
  2. Use the arrows to set the order.
  3. Click Merge and save the combined PDF.

Good to know

  • Password-protected PDFs must be unlocked first.
  • Bookmarks (outlines) and form fields from the source files are not merged into the result.
  • Files up to 200 MB each are supported; very large merges depend on your device's memory.

Frequently asked questions

Is there a limit on the number of files?

You can add up to 100 files per merge. The practical limit is your device's memory.

Will merging reduce quality?

No. Pages are copied as-is; nothing is re-compressed or rasterized.

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