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🧩 Merge PDF Files

Merge PDF files for free: upload several files, reorder them with the arrows and download one PDF. Everything runs in your browser, so your files are never uploaded.

🔒 Files are processed on your device⚡ Fast🆓 Free, no sign-up
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Drop PDF files hereor click to choose a file from your device

How to use Merge PDF Files

  1. Upload your PDF by dragging it in or clicking the drop area.
  2. Adjust the options if there are any.
  3. Click the button and download the result right away.

About this tool

This tool joins several PDF files into a single document, for example contract pages, invoices or research papers. You can change the order of the files with the arrows before merging.

It runs entirely in your browser using the pdf-lib library, so your files are never sent to a server and your privacy is preserved. Password-protected files cannot be merged.

Frequently asked questions

Is there a limit on the number of files?

There is no fixed limit, but the total size depends on your device memory.

Are my files uploaded to the internet?

No. Processing happens only on your device.

Does the layout of the pages change?

No. Pages are copied as they are, without re-rendering.

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