A single scan often contains several unrelated documents. Splitting them apart makes each one sendable on its own, and much smaller.
Every-page splitting creates an individual PDF per physical page, not grouped chapters. Check several downloaded files and their names before attaching them.
Ranges use physical page indices. Nonexistent pages are ignored and repeated numbers are removed.
All content on a kept page remains. Selecting pages is not redaction.
Splitting every page saves one file per page, named after the original with the page number added. The files are saved one at a time rather than in a zip, so your browser may ask you to allow several downloads, and it is worth saving them into one folder.
If you have a scan that is really several documents, such as a set of receipts, use ranges to split it by document instead of by page, so each file keeps its pages together. The pages are copied rather than redrawn, so any text in them stays selectable.
No. It creates one selected-page PDF. Repeat with another range, or use every-page splitting for individual files.
A PDF that needs a password to open must be unlocked first with Protect PDF. For a very long document the thumbnails can take a moment, and you can still type the page numbers yourself.
Not at the moment. Each file is saved separately, one after another.