PDF tools
Merge PDF
Combine PDFs into one, in the order you choose. Runs on your device. Nothing uploaded.
Drop or click to add PDFs
Up to 20 files. Combined into one PDF in the order shown.
Private by design - files stay in your browser.
Frequently asked
- How do I merge multiple PDFs into one?
- Drop the PDFs into Convertify, drag them into the order you want, tap Merge, then Download. Combines on your device - no signup, no upload.
- Are my PDFs uploaded to a server?
- No. Merging happens locally in your browser via mupdf-wasm. Your files never leave your device, so contracts and personal docs stay private.
- Does the order matter?
- Yes - pages are joined in the order shown. Use the up/down arrows to rearrange before merging.
- Will fonts, images, and links survive?
- Yes. We graft each source page with its full resource graph - fonts, images, and links come through cleanly. No re-rendering, no quality loss.
- How many PDFs can I merge?
- Up to 20 files, 200MB combined. For everyday merging that's well beyond what most people need.