Merge PDF is a free tool that runs entirely in your browser. Combine several PDFs into one file, in the order you add them. It’s ideal for reordering, splitting or combining documents before you send, print or archive them. Because everything happens locally with pdf-lib and pdf.js, your files are never uploaded to a server — Merge PDF works instantly, even offline, and keeps every document completely private, with no account, no watermarks and no file-size limits.
How to use Merge PDF
- 1Open the Merge PDF tool and add your PDF files (at least 2). Drag & drop or click to choose.
- 2Press Run — there are no settings to fuss with.
- 3Download your result. The whole thing happens on your device, so your PDF files never leave your browser.
100% private — nothing is uploaded
Unlike most online PDF tools, Merge PDF never sends your PDF files to a server. Everything is computed locally in your browser with JavaScript, so your documents stay on your device. There's no account, no watermark and no file-size limit — and it even keeps working with your Wi-Fi switched off.