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October 4, 2026

How to merge PDF files without uploading them

Merging PDFs is one of the most common office jobs: a signed contract plus its appendix, a month of bank statements, scanned pages of an ID for an application. Those are exactly the documents you would rather not hand to a stranger’s server.

Merge them on your own device

Xonvert’s merger runs inside the web page. Drop two or more PDFs in, drag them into the order the pages should appear, and download one merged file. Nothing is uploaded — you can turn off Wi-Fi after the page has loaded and it still works.

Merge PDFs in your browser →

Nothing is re-rendered

The pages are copied as they are with pdf-lib, an open-source PDF library. Text stays selectable, links and page sizes are kept, and images are not recompressed, so the merged file looks exactly like the originals.

Limits

You need at least two files. Free use merges up to 10 files at a time; Pro raises that to 100.

Related jobs

Need only some pages? Split or extract them first. File too big for email afterwards? Compress it.

Split a PDF →

Compress a PDF →

Try it now — open the converter.