Wraps FPDFPage_New. Inserts a new blank page of the given
dimensions at page_num (1-based). Existing pages at or above
page_num shift down by one.
Usage
pdf_page_new(doc, page_num, width, height)
Arguments
- doc
A read-write pdfium_doc.
- page_num
Insertion index, 1-based. Must satisfy
1 <= page_num <= pdf_page_count(doc) + 1.
- width, height
Page size in PDF points (1 pt = 1/72 in).
US Letter is 612, 792; A4 is 595, 842.
Value
A pdfium_page handle for the new page. (Unlike most
mutators this returns a page rather than the doc, because
callers typically want to add content to the page
immediately.)