PDF Merger & Splitter

Combine PDFs into one, or split one into multiple.

Drop PDFs here, or click to choose

About

Drop in multiple PDFs, drag to reorder, click Merge to download a single combined PDF. Or drop in one PDF, choose page ranges, and split it into separate files. All processing happens in your browser. Files never leave your device.

How to use

Pick Merge or Split.
Drop in your PDF(s). Drag to reorder if merging.
Click the action button. Download the result.

FAQ

Are my PDFs uploaded?+

No. Everything happens in your browser using pdf-lib. Nothing is sent to a server.

What's the file size limit?+

There's no hard limit, but very large PDFs may slow down your browser tab. For PDFs over a few hundred MB, a desktop tool will be faster.