Merge PDF
Combine multiple PDFs into one file
Runs in your browser · file never uploads
Drop PDF files here
2 or more PDFs · max 25 MB each (free tier)
0 files · drag to reorder
Merged successfully —
Download merged PDF
How to merge PDFs
- Drop or choose 2 or more PDF files
- Drag to reorder them (top = first page in final PDF)
- Click "Merge PDFs" — runs in your browser, instant
- Download the combined PDF
Your files never leave your device — all processing happens locally via pdf-lib.