What is PDF Merge / Split?
The PDF Merge / Split tool lets you combine multiple PDF files into one or split a single PDF into individual pages. Useful for joining scanned documents, splitting large reports, or reorganising PDF files. Everything is processed in your browser using the pdf-lib library - your files are never uploaded to any server.
How to Use
Choose Merge to combine PDFs or Split to break one apart.
Drag and drop your PDF files or click Browse to select them.
Click the action button to process. Download the result when ready.
Why Use This Tool?
Most PDF tools online either charge money, add watermarks, or upload your files to their servers. This tool processes everything locally in your browser. Your documents stay on your device from start to finish. No limits, no watermarks, no sign-up.
FAQ
No. All processing happens in your browser using JavaScript. Your files never leave your device.
There is no fixed limit, but very large files (over 100 MB) may be slow depending on your device's memory and processing power.
You can reorder the files before merging. For page-level rearrangement, split first and then merge in the order you want.