static private void InsertIntoDictionary(PdfDocument doc, PdfPage page, PdfImageObject image)
{
//Get page dictionary, list of indirect objects and original page content
var pageDict = page.Dictionary;
var list = PdfIndirectList.FromPdfDocument(doc);
//Convert contents to array.
PdfTypeArray array = ConvertContentsToArray(pageDict["Contents"], list, pageDict);
//Get stream of image.
IntPtr streamHandle = Pdfium.FPDFImageObj_GenerateStream(image.Handle, page.Handle);
var stream = PdfTypeStream.Create(streamHandle);
//Add image's stream into list of indirect objects and then add it to array.
int num = list.Add(stream);
array.AddIndirect(list, num);
}
