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Merge PDF

Combines two or more PDF files into a single document, in the order you arrange them.

  • No upload — runs on your device
  • Free, no sign-up
  • No watermark

What Merge PDF does

Combines two or more PDF files into a single document, in the order you arrange them. Combining separate PDFs into one document is a common need when assembling a report from multiple sources, joining scanned pages into a single file, or compiling several contracts into one packet. Files are merged in whatever order you arrange them, and each page retains its original quality — nothing is re-rendered or recompressed in the process.

Works well with: Compress PDF · Split PDF · Sign PDF

Runs 100% in your browser

PDFHook processes this file using JavaScript on your own device. It's never uploaded, stored, or seen by anyone else — and it works even if your connection drops mid-way.

HOW TO USE IT

Merge PDF in 3 steps

1

Add your PDFs

Drop in two or more PDF files.

2

Arrange the order

Drag files into the order you want them combined.

3

Download the merged PDF

All files become one document, in that order.

Key features

  • Combine as many PDFs as you like
  • Drag to reorder before merging
  • Pages keep their original quality
  • Drag-and-drop reordering before merging
  • No file count limit built into the tool

Practical use cases

  • Someone assembling a report needs to combine several separately-authored PDF sections into one document.
  • A user has scanned a multi-page document as separate files and needs them joined into one PDF.
  • Someone compiling a packet of contracts or forms wants a single file to send instead of several attachments.

Related terminology

PDF merging
Combining two or more separate PDF files into a single document, preserving each source file's pages in the chosen order.

Frequently asked questions

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

There's no fixed limit — you can combine as many files as your device's memory can handle.

Can I change the order after adding files?

Yes — drag the files into the order you want before merging.

Does merging affect the quality of the original pages?

No — pages are combined as-is, keeping their original quality without any re-rendering or recompression.

Can I merge PDF pages from different files in a custom order?

Yes — join PDF online by dragging files into whatever order you want before merging; the combine PDF files process respects that exact order.

Is there a free PDF merger with no combine-file limit?

Yes — this PDF merger free tool has no limit on how many files you combine multiple PDFs from in a single merge.

Is Merge PDF free?

Yes, and there is no sign-up, watermark or daily limit — everything runs in your browser rather than on a metered server.

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