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Merge PDF Files Online
Combine multiple PDF files into one document. Drag to reorder pages before merging.
About merge pdf
Combine multiple PDF files into one document. Drag to reorder pages before merging.
The PDF is opened and rewritten locally with pdf-lib and PDF.js compiled for the browser. Nothing is uploaded, nothing is stored, and the finished file downloads straight from your browser — which makes it a safe choice for contracts, invoices and anything confidential.
Features
- Drag to reorder pages before merging.
- Processed locally with pdf-lib — files never leave your device
- Safe for contracts, invoices and confidential documents
- No watermark and no page limit set by us
- Free, with no account required
- Works on desktop, tablet and phone
How to merge pdf online
Add your PDF files
Drop two or more PDFs onto the tool or select them from your device.
Put them in order
Drag the files into the order you want; you can add more or remove any before merging.
Merge and download
Click Merge, then Download the combined PDF. Everything stays on your device.
Frequently asked
Is my PDF files uploaded to a server?
No. Merge PDF Files Online runs entirely in your browser using pdf-lib and PDF.js compiled for the browser. Your PDF files never leaves your device and we don’t store anything.
Which formats are supported?
Standard PDF files of any version. Password-protected PDFs need to be unlocked first.
Is there a file size limit?
We don’t impose one. Very large PDFs (hundreds of MB) depend on your browser’s available memory.
Is Merge PDF free? Do I need an account?
Yes, it is completely free and there is no account, sign-up or watermark. It is one of 78 free browser tools from ModelsGroup.
Does it work on my phone?
Yes. It works in Safari and Chrome on iPhone, iPad and Android; open PDFs from Files or your downloads.
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