Free & Fast — No server uploads, no installs, no watermarks.
Combine PDFs in any order you choose.
The Merge PDF tool lets you combine multiple PDF documents into one — quickly, privately, and entirely in your browser. Whether you're merging reports, legal forms, invoices, or scanned documents, this tool gives you full control of the order and content.
It's perfect for organizing paperwork, submitting bundled applications, creating a single archive of receipts, or compiling multiple chapters into a single ebook. Whatever the use case, merging is done right on your device, keeping your documents private and secure.
Everything runs locally using JavaScript — no server uploads, no waiting, and no installs. Just fast, reliable merging directly in your browser on desktop or mobile.
Is my file uploaded anywhere?
No. Everything runs locally in your browser using JavaScript. Your PDFs never leave your device or get uploaded to any server.
Is there a limit to how many PDF files I can merge?
There's no strict limit, but for best performance we recommend merging up to 20 files at a time — especially on mobile devices.
Can I merge PDFs on my phone or tablet?
Yes. PDFGadget works on all modern browsers, including Chrome and Safari on iOS and Android. No app required.
What happens to the file order?
Files will appear in the final PDF in the order you arrange them. Use the up/down arrows next to each file to reorder before merging.
Does this tool work on iPhone or Android?
Yes — it's fully mobile-friendly and runs on any modern browser including Safari and Chrome.