Splitting pdf by file size gets the "Please enter a value between 0.5 and 10 in the increments of 0.5." message

[lucas824]

I'm trying to split a pdf into several documents no bigger than 25 mb. Everything that is explained in the Acrobat DC tutorial works fine until I fill in the File size field with "25" and get the "Please enter a value between 0.5 and 10 in the increments of 0.5." message in return.

If I set "10" as the file size, Acrobat splits the document, but any number bigger than that gives me the aforementioned message in return. Is there any parameter I have missed? Thanks in advance.

[Bernd Alheit]

10 mb is the maximum. 0.5 mb is the minimum.