PDF Merger Online
Combine multiple PDF files into one document.
Drop PDF files here or click to select
Select 2 or more PDFs · drag rows below to reorder
About PDF Merger
Upload two or more PDF files and combine them into a single PDF in seconds. Drag to reorder before merging. All processing happens locally in your browser — your files never leave your device.
Use Cases
Combining invoice PDFs, merging chapters into one book, joining scanned documents, creating unified reports from separate PDF exports.
How It Works
Uses pdf-lib running entirely in your browser. Copies all pages from each uploaded PDF into a new combined document and generates a download link instantly.
FAQs
How many PDFs can I merge at once?
Up to 20 PDFs at once, subject to your browser memory.
Are my files uploaded to a server?
No. All processing happens locally in your browser using JavaScript. Nothing is sent anywhere.
Does it preserve bookmarks and links?
Page content and layout are preserved. Some interactive elements like bookmarks may not transfer.