Add your files
Drop one PDF or two hundred. Batch conversion is not a paid feature here.
A long PDF has to be broken into individual pages, usually for filing, distributing or uploading one page at a time.
The document is split page by page, or into ranges or fixed chunks, and the results are packaged into a single ZIP so the browser only produces one download.
Splitting duplicates shared resources. Each output page carries its own copy of any font subset and colour profile it uses, so the pages added together are usually larger than the PDF they came from.
Yes, per page, by range, or into fixed chunks of N pages.
By a hand-written store-only ZIP writer running in the browser, verified against unzip. The files are already compressed, so storing them again would only cost time.
Drop one PDF or two hundred. Batch conversion is not a paid feature here.
ZIP Archive is lossless, so nothing is thrown away in the conversion.
Instant, because the file never went anywhere. Nothing expires, since nothing was stored.