Short answer
Drop two or more PDFs into the tool below, drag them into the order you want, then merge. The combined file downloads from your browser — nothing is uploaded to a server.
Stays on your device·No upload·No account·No watermark·Offline after install·How it worksMethodologyPrivacy
Merge PDF online
Free · private · files stay on your device
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How it works
- 1
Add two or more unlocked PDFs (or continue a session file).
- 2
Drag the list to set the exact page order.
- 3
Click Merge, then download the combined PDF.
Files never leave your device
Your PDF is processed in this browser tab. Files never leave your device, and mypdf.space does not receive uploads. No account, no watermark, no server-side copy.
Limits worth knowing
- Bookmarks and some interactive features may not fully survive a merge.
- Very large batches are limited by your device’s memory.
- Password-protected files must be unlocked first.
Frequently asked questions
How do I merge PDF files for free?
Add your PDFs, reorder if needed, click Merge, and download. Processing stays in your browser with no account or watermark.Does merge PDF upload my files?
No. Merge runs entirely in your browser tab. Files never leave your device.Can I merge more than two PDFs?
Yes. Add as many as your browser can handle, set the order, then merge once.
Written by Sumit · Last updated 23 Oct 2026