pageDictAt method
Dictionary of a page by index (zero-based).
Implementation
PdfDictToken? pageDictAt(int pageIndex) {
final refs = pageRefs;
if (pageIndex < 0 || pageIndex >= refs.length) return null;
final obj = _getObject(refs[pageIndex].obj);
if (obj == null || obj.value is! PdfDictToken) return null;
return obj.value as PdfDictToken;
}