Merge PDF
Combine multiple PDF files into one document — instantly, right in your browser.
How to merge PDF files
- 1
Add PDFs
Drag & drop or browse — add as many PDFs as you need.
- 2
Reorder if needed
Use the up/down controls to set the final page order.
- 3
Merge on-device
Your browser combines the pages — nothing is sent anywhere.
- 4
Download
Save one merged.pdf containing every page.
Why merge PDFs
Combining separate PDFs into one document makes it easier to share, print, or archive related files together — scanned pages, multiple reports, or chapters that started as separate files.
Good to know
Pages keep their original size and orientation from their source PDF — a mix of portrait and landscape pages stays mixed after merging. The final page order matches the order shown in the list, so use the up/down controls to arrange files exactly how you want them before merging.
Merge PDF FAQ
Is my PDF uploaded anywhere?
No. Every PDF is read and merged entirely in your browser — nothing is sent to a server.
Can I merge unlimited PDFs?
There's no fixed limit in the tool itself — you can add PDFs across multiple upload sessions and reorder them before merging. Very large batches are limited only by your device's available memory.
Does merging reduce quality?
No. Pages are copied natively from each source PDF — fonts, vector graphics, and images are preserved exactly as they were, with no rasterizing or re-encoding involved.
Is it free?
Yes, merging PDFs with this tool is free.
Is everything processed locally?
Yes. There's no server, no account, and no upload step — the merge happens using your browser's own processing, the same as every other tool on this site.