I was exploring pdfcpu as a CLI to help me split a "single page" large image poster PDF at arbitrary points to produce some printable A4 handouts, but I was unable to find appropriate options within pdfcpu directly. I was able to achieve what I wanted using https://deftpdf.com/split-pdf-down-the-middle which appears to be powered by pdfcpu under the covers, so I must be missing something. Is it possible for me to do this using pdfcpu directly myself? I guess I should maybe be using pdfcpu crop multiple times to get each slice and then join those together afterwards?