PDF Merger
Combine multiple PDFs into one — free, browser-based, no upload
Click or drag & drop PDF files here
Select 2 or more PDFs to merge
Frequently Asked Questions
Are my PDF files sent to any server?
No. All merging happens locally in your browser using PDF-lib. Nothing is ever uploaded.
How many PDFs can I merge at once?
You can merge as many PDFs as your device's memory allows. Most modern browsers handle 10–20 large PDFs fine.
Will the merged PDF preserve formatting?
Yes. The page content, fonts, and images are preserved exactly as they appear in the original PDFs.