Free Online PDF Merge & Split Tool
This tool lets you combine multiple PDF files into a single document, or split one PDF into separate files — all directly in your browser. Your files are never sent to any server.
How to Merge PDFs
Switch to the Merge PDFs tab, upload two or more PDF files, then drag the rows to set the order you want. Click Merge PDFs and download the combined file.
How to Split a PDF
Switch to the Split PDF tab and upload a single PDF. Then choose one of three split modes:
- Every Page — extracts each page into its own separate PDF file.
- Custom Range — type ranges like 1-3, 5, 8-10 and each range becomes a separate PDF.
- Pick Pages — click individual page numbers to select them, and they will be combined into one PDF.
When multiple output files are created, a Download All as ZIP button appears so you can grab everything in one click.
Privacy
This tool uses pdf-lib, a pure JavaScript library that processes all PDF operations locally in your browser. No files are ever uploaded or transmitted. Your documents stay on your device at all times.