Merge PDF Files
Combine multiple PDF documents into a single document privately.
Nothing leaves your browserNo sign-upNo watermark
Select PDF files, or drop them here
Select multiple PDFs to combine into a single document.
Processed locally on your device
Merging runs entirely on your device. Your PDF pages are never uploaded to any server.
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Frequently asked questions
How do I merge PDF files into one?
Add two or more PDFs, arrange them in order, and download a single combined PDF. It's lossless — pages are copied as-is.
Is there a limit on how many PDFs I can merge?
No fixed limit. Very large documents use more memory on your device, but typical multi-file merges work fine.
Will merging reduce quality?
No. Merge copies the original pages without re-compressing, so text and images stay exactly as they were.
Is the PDF merger free and private?
Yes — free, no watermark, and the merge happens in your browser, so your files are never uploaded.
Can I reorder the files before merging?
Yes, arrange them in the order you want before downloading the combined PDF.
More free tools
All on-device — nothing you open here is uploaded.