pdfGetPageNumFromPageLabel

Convert a page label to a page number.
int pdfGetPageNumFromPageLabel(PDFViewerHandle viewer, const wchar_t *pageLabel)
This function returns the page number for pageLabel.

Returns -1 if there is no matching page label, or if the PDF file doesn't have page labels.

Page labels are an optional PDF feature, allowing arbitrary strings (e.g., "i", "ii", "iii") to be associated with page numbers.

C:
int pageNum; pageNum = pdfGetPageLabelFromPageNum(viewer, L"xii");
pdfHasPageLabels
pdfGetPageLabelFromPageNum