Free PDF Merger Online
Merge multiple PDF files into one document. Drag and drop to reorder pages. Fast, free, and completely private — your PDFs never leave your browser.
Files never uploaded
Instant processing
100% free
Frequently Asked Questions
How many PDFs can I merge at once?▾
You can merge as many PDFs as you want. There is no limit on the number of files.
Will merging affect the quality of my PDFs?▾
No. The merging process preserves the original quality of all pages, including text, images, and formatting.
Are my PDF files uploaded to a server?▾
No. All processing happens entirely in your browser using the pdf-lib library. Your files never leave your device.
Can I reorder pages before merging?▾
Yes! You can drag files to reorder them, or use the arrow buttons to move files up and down in the list.