How to use
- Select the PDFs to merge (multi-select or keep adding).
- Adjust the list with "Remove" — merge order follows the list.
- Click "Merge PDFs" and download the combined file.
FAQ
How is the page order decided?
It follows the file list — earlier entries come first. Remove and re-add if needed.
Any file size limit?
No hard limit, but merging very large files (hundreds of MB) uses browser memory; batching is recommended.
Does merging reduce quality?
No. Pages are copied at full fidelity without re-encoding images.
About this PDF Merge
Built on pdf-lib, this merger runs fully in your browser: each file is read, all pages are copied into a new document and saved together. You control the order and can add or remove files anytime. Zero upload makes it ideal for sensitive contracts and ID documents.