Merge PDF Files

Combine multiple PDFs into one · Free · Private · No signup

🔒 100% Private — Your PDFs are processed in your browser only. Nothing uploaded to any server.

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Select multiple PDFs · Max 20 files

❓ Frequently Asked Questions

Are my PDFs safe? ▾

Yes, 100% safe. All merging happens inside your browser using JavaScript. Your PDF files are never sent to any server. We cannot see your files.

How many PDFs can I merge at once? ▾

Up to 20 PDF files at once. For very large files the process may take a few seconds depending on your device.

Will PDF quality be affected after merging? ▾

No. Merging does not affect quality. Images, fonts, and formatting are preserved exactly as in the original files.

Can I change the order of PDF pages? ▾

Yes! Use the ▲ and ▼ buttons to reorder files before merging. The merged PDF will follow the order you set.