Merge PDF

Combine PDFs without uploading them anywhere

Most online PDF mergers work by uploading your documents to a server, joining them there, and giving you a download link. That's a real problem when the PDFs are contracts, bank statements, medical records or anything else you wouldn't email to a stranger. This merger is different: the entire join happens inside your browser using an in-browser PDF engine, so the files never leave your computer. Close the tab and nothing exists anywhere but your own machine.

It also makes merging faster in practice. There's no upload wait and no server queue - a 50 MB stack of PDFs merges in roughly the time it takes to read this sentence, even on a slow connection, because the connection isn't involved at all.

What you can merge, and in what order

Add as many PDFs as you like and drag them into the order you want before merging - the output follows your list top to bottom. Page sizes and orientations are preserved exactly as they are in the source files: a landscape spreadsheet export can sit between portrait letter pages without anything being stretched or rescaled. Bookmarks and form fields from the first document are retained where possible.

Typical uses: assembling a single application package from scans, ID documents and forms; combining chapter exports from a word processor into one manuscript; joining monthly statements into a yearly archive; or stitching a cover page onto a report before sending it out.

Is there a file size or page limit?

There's no artificial limit and no premium tier holding features hostage - the practical ceiling is your device's memory, which comfortably handles hundreds of pages on any modern laptop or phone. The output is a standard PDF that opens in Adobe Reader, Preview, browsers and phones alike. If the merged file ends up larger than an email allows, run it through our Compress PDF tool next - the two are built to be used together.