Merge PDF files privately
Join several PDFs into a single document without uploading them to an online merger. The whole operation runs on your device.
Open this tool in FileX →Free · runs 100% in your browser · no upload, no account
How it works
- Open the Merge tool and add the PDFs you want to combine, in order.
- FileX stitches them into one document using pdf-lib, in your browser.
- Download the merged PDF.
Why local merging matters
Contracts, statements, and scans are exactly the kind of documents you should not upload to a random web tool. Merging locally keeps them private end to end.
Frequently asked questions
Is there a file limit?
FileX applies a generous free size cap with unlimited use on Pro. Merging adds no watermark and no server round-trip.