Merge
Combine multiple PDFs into one
Merge multiple PDF files into one document, in the order you choose. Free, no installation, no limits — your files never leave your browser.
- Files processed on your device
- No file size limit
- 100% free
How to merge PDF files
- 1Add your PDF files by dragging and dropping them or browsing your device: they are loaded inside your browser, with nothing ever sent to a server.
- 2Arrange your documents in the exact order you want using the up and down arrows — the first file in the list will open the final document.
- 3Click “Merge PDFs” and download your single combined file right away: no size limit, no watermark, no sign-up required.
Frequently asked questions
Are my files uploaded to a server?
No. Merging runs entirely in your browser thanks to WebAssembly: no file is ever uploaded, stored or logged online. You can even switch off your internet connection after the page has loaded — the tool keeps working.
How many PDFs can I merge?
As many as you like: there is no file-count or size limit, unlike most free online services. Only your device's available memory sets a practical bound — dozens of PDFs with hundreds of pages each are no problem.
Can I change the file order?
Yes. Reorder the list with the up/down buttons before merging: documents are combined exactly in the order shown. You can also remove a file from the queue at any time without starting over.
Does the merged PDF get a watermark?
No, never. The final file is simply your originals joined end to end: no advertising watermark, no extra pages, no account required. The tool is 100% free, with no hidden paid tier and no daily limit.