Merge PDF
Merge several PDF files into a single document in any order, entirely in your browser. Your files never leave your device.
How it works
- 1
Drop your file
Add a PDF (or images). It's read in your browser — nothing is sent to a server.
- 2
Set your options
Configure Merge PDF the way you need.
- 3
Process locally
The document is built in the browser with pdf-lib / PDF.js.
- 4
Download
Save the resulting file or ZIP instantly.
Common uses
- Combine a signed contract, invoice and cover letter into one document to send.
- Assemble scanned pages that came out as separate files into a single PDF.
- Merge chapters or reports before sharing or printing.
About the Merge PDF
Merge several PDF files into a single document in any order, entirely in your browser. Your files never leave your device.
Merge PDF is part of a free, privacy-first toolkit. Your files are handled entirely in the browser with pdf-lib and PDF.js, so nothing is uploaded to a server and there are no page or size limits.
Because merge pdf works without any sign-up or installation, you can use it as often as you like and it's always available — on desktop or mobile, and even offline.
Explore more pdf tools, or try Images to PDF · PDF to Images.
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Merge PDF — FAQ
Yes. Use the up/down arrows to arrange the files; they're combined in the order shown.