The New Page Number Dialog

You may set the number of the first page in this dialog:

Option name

Option description

Next page number Sets the first batch page number.
Numbering order group

Sets the numbering order. 

Increasing Pages are numbered like this: 1,2,3 etc.
Decreasing Pages are numbered like this: 10,9,8 etc.
Numbering group
Continuous Sets the continuous numbering mode: 1,2,3 etc. (not 1,12,34,57 etc.)
Odd and even separately Sets the numbering mode in which the page numbers are like this: 1,3,5,7 or 2,4,6,8 etc. You may find this mode useful, for example, if you scan many double-sided pages - first you scan the odd side, then you scan even side. 
Ask for page number before adding page to the batch If you set this option, ABBYY FineReader will ask you to specify the page number before it adds it to the batch.