PDF Merge and Split
Merge PDFs or split by page and range
Merge PDFs
Files merge in selection order - the numbers are the merge order; to rearrange, re-pick the files in the desired order.
Split PDF
How to Use
Scattered PDFs everywhere - a resume, scanned pages, contract annexes that should become one file before emailing? Or a huge PDF where you only need a few pages? This tool merges and splits PDFs right in the browser, with no software to install.
How to use: to merge, pick several PDFs in order and press "Merge and Download" to get merged.pdf; to split, choose a file and either split every page into its own file or enter ranges like 1-3,5, each producing a separate PDF to download. Everything runs locally in your browser - files never leave your device, and no account is required.
FAQ
Are there page count or file size limits?
There is no hard limit - it depends on the memory available to your browser. Files with hundreds of pages or tens of MB are usually fine; for very large files, merge in batches or compress them first.
What split modes are supported? How do I write ranges?
Two modes: one file per page, and custom page ranges. Ranges use 1-based numbers separated by commas, e.g. 1-3,5 means pages 1 to 3 plus page 5, and each range becomes its own PDF. Overlapping ranges are allowed; out-of-bounds or invalid input shows an error.
Will my PDFs be uploaded to a server?
No. Merging and splitting are done locally with pdf-lib inside your browser. Files never leave your device, no signup is needed, and the open page even works offline.