How to merge PDF files for free (without uploading them)
Combine invoices, scans or chapters into one PDF in the order you want — securely, in your browser, with no watermark.
Merging PDFs is one of the most common document tasks — combining receipts for an expense report, joining scanned pages, or stitching a proposal together. Most free tools upload your documents to a server, which is a problem if they contain anything sensitive. Here's how to do it entirely on your own device.
Merge PDFs in three steps
Add your files
Open the Merge PDF tool and drop in two or more PDFs. Each shows its page count.
Put them in order
Use the up/down controls to arrange the files the way they should appear.
Merge and download
Export to combine everything into one PDF — no watermark, no sign-up.
Related tasks
- Need the opposite? Split PDF breaks one file into separate documents.
- Pages in the wrong order? Reorder Pages lets you drag them into place.
- Got extra pages to drop? Delete Pages removes them before you merge.
A note on privacy
Because the merge happens in your browser with pdf-lib, your documents are never transmitted to us. That matters for contracts, IDs, medical forms and anything else you'd rather not upload to an unknown server.