You have three PDFs — a form, a receipt and a scan — and someone wants them as one file. Here’s how to combine them for free on any device, without installing software and without uploading a thing.
🔗 Open the free Merge PDF toolCombine PDFs in your browser — nothing is uploadedYou don’t need Acrobat, an app, or an account. A browser-based merger opens your PDFs on your own device, joins them, and saves the result straight back to your downloads. It works the same on Windows, Mac, iPhone and Android because it’s just a web page.
Windows & Mac: open the tool in Chrome, Edge, Safari or Firefox, add your files, merge, done. No program to install.
iPhone & iPad: open the tool in Safari, tap to add PDFs from Files or iCloud Drive, merge, and the combined file saves back to Files.
Android: open the tool in Chrome, add your PDFs, merge, and the result lands in your Downloads.
Most “combine PDF online” sites upload your files to their servers first. For a receipt that’s harmless; for a contract, an ID scan or a medical form, you’ve handed a copy to a stranger’s computer. A browser-based tool never sends your files anywhere — you can even turn off your Wi-Fi after the page loads and it still works. We wrote more on that here: How to merge PDFs without uploading them.
Is there a file limit?
No fixed cap — the limit is your device’s memory. Because nothing is uploaded, large files merge faster than on upload-based sites.
Will it reduce quality?
No. Pages are copied into the new document as-is, not re-compressed.
Can I combine scanned documents?
Yes. Any valid PDF works, scanned or not.
Is it really free?
Yes — no sign-up, no watermark, no page limit. The site is supported by ads.
Do you see my files?
No. The merge happens in your browser, so your files are never transmitted to us.