How to Merge PDF Files on Any Device

Why a browser tool beats desktop software for most people

Desktop software requires installation, occasional updates, and often a licence fee. A browser-based merger works from any device on any operating system the moment you open a tab — no setup required.

• ·Works on Mac, Windows, Linux, Chromebook, iPhone, iPad, and Android
• ·No software to install, no account required
• ·Files are merged inside your browser — not uploaded to a server
• ·Free for unlimited files and unlimited file sizes

Step-by-step: merge PDFs with EditPDF AI

1. 1Open editpdfai.com/pdf-merger in any browser on any device.
2. 2Click "Add PDFs" or drag your files directly onto the upload area. You can add as many files as you need.
3. 3The files appear as cards in the order you added them. Drag and drop the cards to rearrange them into the correct order.
4. 4Click Merge PDF.
5. 5Download the combined PDF. All pages from all files are in the combined document in the order you set.

Tips for a clean merge

• ·Check page size consistency before merging — mixing A4 and US Letter pages looks inconsistent when printed. Standardise sizes first using the PDF Editor.
• ·Set the order before merging — while you can reorder cards in the merger, it is faster to drag files into the right order on your desktop first.
• ·Compress large files before merging — if individual files are 20+ MB each, compress them first to keep the merged file manageable.
• ·If you need specific pages from each document rather than the whole files, use Extract Pages first, then merge the extracts.

Platform-specific alternatives

The browser method works everywhere. But if you prefer native tools:

• ·Mac — Preview app: open one PDF, choose View → Thumbnails, then drag pages from the second PDF's thumbnail panel into the first
• ·Windows — Microsoft Edge: open each PDF and print to PDF, selecting all pages. This is slow for multiple files.
• ·iPhone/iPad — the Files app: long-press on multiple PDFs, tap Create PDF. Works for simple cases.
• ·Any platform — EditPDF AI in a browser: the most reliable cross-platform option, especially for more than two files.