Free • No signup • Works Worldwide
Merge PDF files
Combine multiple PDFs into one file in seconds.
or drop PDF here
Reorder
Drag cards to set merge order.
Rotate
Rotation affects final merged PDF.
Fast download
Get merged.pdf instantly.
Merge PDF Files Online — Combine Multiple PDFs into One
Use NeutronPDF to merge PDFs online in seconds. Upload two or more PDFs, drag to reorder them, rotate pages if needed, and download a single merged PDF. This tool works worldwide (USA, UK, Canada, Europe and more) on Windows, macOS, iOS, Android, and Linux.
Drag to reorder
Arrange PDF order before merging for the exact output.
Rotate PDFs
Fix sideways pages—rotation is applied to real PDF pages.
Fast & simple
Merge quickly with a clean UI and instant download.
How to merge PDFs
- Click Select PDF files or drag & drop your PDFs.
- Drag cards to reorder the merge order.
- Rotate any PDF if required (rotation affects final output).
- Click Merge PDFs and download the merged file.
Frequently asked questions
How many PDFs can I merge?
You can merge up to your tool limit (your UI currently allows up to 20 files).
Does drag order control the final merged order?
Yes. The merged PDF follows the exact order of your cards.
Does rotation affect the final merged PDF?
Yes. Your rotate action updates the real PDF bytes, so the merged output stays rotated.
Can I merge PDFs on mobile?
Yes. The tool works on iPhone and Android browsers too.