How to merge PDF files
- Choose two or more PDF files, or drag them onto the box.
- Use the ↑ and ↓ buttons to set the order.
- Click Merge PDFs and save the combined file.
Is it safe to merge confidential documents?
Yes. Unlike most online PDF tools, this merger runs completely inside your browser using the open-source pdf-lib library. Your files are never uploaded to a server, so it's safe for bank statements, ID documents and application forms.
Troubleshooting
- Password-protected PDFs can't be merged. Remove the password first (open it and “print to PDF”).
- Very large files (hundreds of MB) may be slow on phones.