Merge PDF

Combine several PDFs into one file.

Merge PDF is a free online tool to combine several PDFs into one file. It runs entirely in your browser, so your files never leave your device — nothing is uploaded. There's no sign-up, no watermark, and it works on any modern browser on desktop or mobile.

How to use Merge PDF

Merge PDF lets you combine several PDF files into one tidy document without installing software. Add your files, drag them into the exact order you want, then merge and download in a single click. Because the merge runs entirely in your browser, your PDFs are processed in your browser and never uploaded, so even confidential contracts and reports stay private.

Read the full guide: Free Adobe Acrobat Alternative: Every PDF Task Free

1Add two or more PDF files by dragging them in or clicking to browse your device.
2Drag the files into the order you want them to appear in the final document.
3Click Merge to combine them, then download your single PDF.

Fully private

Files are merged locally in your browser and never sent to a server, so sensitive documents stay on your device.

Drag to reorder

Arrange pages in any sequence before merging so the final document reads exactly as intended.

Free and unlimited

Combine as many PDFs as you like with no signup, no watermark and no file count limits.

Merge PDF — frequently asked questions

Are my PDF files uploaded to a server?

No. The entire merge happens inside your browser using local processing. Your files never leave your device, which makes this safe for confidential paperwork.

How many PDFs can I combine at once?

You can add multiple PDFs in a single session and merge them into one file. Very large documents may take a little longer because the work is done on your own computer.

Will merging change the quality of my pages?

No. Merging keeps each original page intact and simply places them in one file, so text and images look identical to the source PDFs.