Merge PDF Files
Combine two or more PDFs into a single document. Drop your files, drag them into order, and download the merged result — all locally in your browser.
Drop PDFs here (2 or more)
or click to browse
Private: files never leave your device
Frequently asked questions
Are my PDF files uploaded to a server?
No — this tool runs entirely in your browser using WebAssembly and JavaScript. Your files never leave your device, which also means there are no size limits and no queues.
Can I change the order of the merged PDFs?
Yes — after adding files, use the arrows to reorder them. Pages are merged in exactly the order shown in the list.
Is there a limit on how many PDFs I can merge?
No fixed limit. Because merging runs on your own device, capacity depends only on your browser memory — dozens of files and hundreds of pages are fine.