How to use the Merge PDF
Add two or more PDFs, use the arrows to put them in the order you want, and press Merge PDFs. The combined file downloads straight away.
Everything runs inside your browser with the open-source pdf-lib library, so contracts, invoices and school work are never uploaded to a server.
Frequently asked questions
Is there a file size or page limit?
No fixed limit. Very large files depend on your device's memory; a typical laptop handles several hundred pages easily.
Can I merge password-protected PDFs?
Files with an open password must be unlocked first. Files with only editing restrictions usually merge fine.
Will the merged PDF have a watermark?
No. The output is a clean PDF with exactly the pages you added.