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KioTools
  • +100 Tools
  • 100% Free
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  • No Sign-up
  • Runs locally

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PDF Merger

What is this tool?

A focused PDF merging tool. Load any number of PDF files, see every page as a thumbnail in one reorderable grid, drag pages into the exact order you need (even mixing pages from different source files), then build and download the combined PDF.

When to use it

  • Combining scanned ID pages, invoices or receipts into a single PDF before submitting them
  • Assembling multiple chapters or reports into one document for printing or archiving
  • Reordering pages from several source files into one final document
  • Stitching together a signed contract that was scanned in separate pieces
  • Building one shareable PDF out of several separate exports

How to use it

  1. 1Drop in two or more PDF files, or click to browse
  2. 2Every page from every file appears as a thumbnail in one list
  3. 3Drag pages into the order you want — pages from different files can be mixed freely
  4. 4Remove any page you don't want with the X button
  5. 5Click Merge PDF, then Download to save the combined file

Frequently asked questions

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

No hard limit — everything runs in your browser, so it's bounded only by your device's memory for very large files.

Can I reorder pages before merging?

Yes — drag any page thumbnail to a new position, including moving pages between different source files.

Are my files uploaded anywhere?

No. The PDFs are loaded and merged entirely client-side in your browser; nothing is sent to a server.

Can I remove a page before merging?

Yes — hover a page thumbnail and click the X to drop it from the final file.