Examples of splitting and merging PDFs?

[edwilson97]

Are there are examples of how to use this API to split and merge PDFs? I'm guessing it has to do with the PDFPage and PDFPageCollection, but I wasn't sure.

[bradleypeet]

Haven't seen much sample code for PDFiumSharp out there. I've used PDFiumSharp for rendering and text extraction but not pagination, as we've been using PdfSharp for that for a long time (and there's no reason to change that existing code right now). Pdfium.NET is based on the same underlying API has a lot of sample code, but not sure how that would or could translate to PDFiumSharp.

[1000374]

I wrote a method that should work
see this
https://github.com/1000374/PDFiumSharp/blob/master/PDFiumSharp/PdfSupport.cs