How to split a3 pdf into 2 a4
Features: Split a PDF page to two half size Pdf Page, for example, Split a A3 Page to two A4 pages. What I would like is to split say an A3 paper document into two A4 pages. I have a PDF in which the pages are somehow double-
This two commands crop the first two A4 landscape sized sheets from the large kombi.jpg image file and save them as single-1.jpg resp. single-2.jpg. Now that needed to be done 19 times; not something I wanted to do manually.

https://youtube.com/watch?v=69DprZeQruw

https://youtube.com/watch?v=JxcqIDkHmks

https://youtube.com/watch?v=kQD5m3AvmK0

https://youtube.com/watch?v=tzak16XRuAY