Split PDF pages in Xamarin

To split a PDF document into multiple pages.

PDFDoc doc = new PDFDoc(filename);
int page_num = doc.GetPageCount();
for (int i = 1; i <= page_num; ++i)
{
    PDFDoc new_doc = new PDFDoc();
    new_doc.InsertPages(0, doc, i, i, PDFDoc.InsertFlag.e_none);
    new_doc.Save(output_filename + "_split_page_" + i + ".pdf", SDFDoc.SaveOptions.e_linearized);
}

Merge, Copy, Delete, and Rearrange PDF Pages
Full code sample which illustrates how to copy pages from one document to another, how to delete, and rearrange pages and how to use ImportPages().