Don's Tools · PDF · Merge & Split

Merge & split PDFs

Add your PDFs, then drag pages into any order, rotate or delete them, and either merge into one file or split however you like. Nothing is uploaded.

What to do
PagesTap a page to select · drag or use the arrows to reorder
Drop PDFs here
or tap to choose · add as many as you like · your files stay on your device
Your pages will appear here
Merge and Split PDF is a free tool to combine and split PDFs entirely in your browser. Add multiple PDFs to see every page as a thumbnail in one grid, reorder pages by dragging or with arrows, rotate or delete pages, then merge everything into one PDF or split by each page, every N pages, custom page ranges, or only the pages you select. Pages are copied losslessly with no re-compression, and your files are never uploaded.

Frequently asked questions

Are my PDFs uploaded anywhere?

No. Every PDF is opened, merged and split inside your browser on your device, and nothing is ever sent to a server.

What can I do here?

Add several PDFs and see every page as a thumbnail in one grid. Reorder pages by dragging or with the arrows, rotate or delete any page, then either merge everything into one PDF or split by each page, every N pages, custom ranges, or just the pages you select.

Does merging or splitting reduce quality?

No. Pages are copied across exactly as they are, so there is no re-compression and no quality loss. To make a PDF smaller, use the Compress PDF tool instead.

Can I reorder pages across different files?

Yes. Every page from every PDF you add appears in the same grid, so you can drag pages into any order, mix files, and remove pages before merging.

How big a document can it handle?

Everything runs on your device, so very large or many-page PDFs depend on your computer's memory and speed. On older phones or low-memory devices, work with smaller files or fewer pages at a time.