How to merge PDF files
- Click Choose PDFs or drag several PDF files onto the box.
- Check the page count shown for each file and put them in the order you want with the arrows.
- Press Merge, then Download merged.pdf.
How it works
The tool uses the open-source pdf-lib library to open each document, copy its pages into a new PDF and save the result. Pages are copied as they are, so text stays selectable and images keep their original quality. Nothing is re-rendered or compressed.
Common uses
- Combine a cover letter, CV and certificates into one application file.
- Join scanned receipts or invoices for an expense claim.
- Put lecture notes or report chapters into a single document for printing.