Are my PDFs uploaded to a server?

No. This tool works entirely in your browser using JavaScript. Your files never leave your device.

Is there a file size limit?

There is no hard limit, but very large files (100MB+) may slow down your browser. Most PDFs under 50MB each work fine.

You can merge as many PDFs as you like. Add them one by one or select multiple files at once.

No. This tool combines the PDF pages without re-compressing or altering any content. Quality is preserved exactly.

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Combine multiple PDF files into one. Drag to reorder. Works entirely in your browser — nothing uploaded.

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Click to add PDFs or drag & drop here

Select multiple files at once · Any order

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PDFs merged successfully!

🔒 100% Private — your files never leave your device. Processing happens locally in your browser.

ℹ️ How to use