Merge PDF
Combine two or more PDF files into one. Reorder files before merging. Everything runs in your browser.
Loading PDF merger…
Frequently asked questions
- Are my PDFs uploaded to a server?
- No. Files are processed locally in your browser using pdf-lib. Nothing leaves your device.
- Can I control the order of pages?
- Yes. Use the up and down arrows next to each file to reorder before merging. Pages appear in the listed order.
- Are password-protected PDFs supported?
- No. Vanilla pdf-lib cannot read encrypted PDFs. You will see a clear error message identifying the file.
- What is the size limit?
- Combined input up to 100 MB. Individual PDFs must be valid and unencrypted.