Merge PDF
Upload two or more PDF files, reorder them as needed, and merge them into a single PDF document — all done locally in your browser, with nothing uploaded to a server.
How to use
- 1
Choose your PDF files
Select two or more PDFs from your device — you can select multiple at once.
- 2
Reorder if needed
Use the ↑/↓ buttons to set the order pages will appear in.
- 3
Click Merge PDFs
The files are combined into one document in your browser.
- 4
Download the result
Save the combined file as merged.pdf.
Examples
- Three separate chapter PDFs merged in order → one combined document
- Reordering files before merging changes which pages come first in the output
Frequently asked questions
Are my PDFs uploaded anywhere?
No. The merge happens entirely in your browser using a client-side PDF library. Your files never leave your device.
How do I control the order of the merged file?
Files are merged in the order shown in the list. Use the ↑ and ↓ buttons next to each file to reorder them before merging.
Does merging affect the quality of my PDFs?
No. Pages are copied directly from each source PDF into the new document without re-rendering, so text, images, and formatting stay exactly as they were.
Can I merge password-protected PDFs?
No, encrypted or password-protected PDFs can't be read by the in-browser library. Remove the password first using your PDF viewer, then merge.