DocuWare Import can split every x pages but not on an abitrary and constantly changing page count. To split on a specific page you must be able to identify a unique attribute on the page to split on. So if page 13 and page 17 have an attribute that can only be found on those pages then yes you could split on that.
So for example say the unique attribute was the word Split. Then you would tell DocuWare to split when it found that word at a specific location.
Then you would get 3 documents:
Pages 1-12, 13-16, and 17-80.
You will need the Barcode & Forms module to accomplish this.
Senior Director Client Services Americas