iTextSharp.text.pdf.PdfReader.GetBoxSize C# (CSharp) Метод

        public Rectangle GetBoxSize(int index, String boxName) {
            PdfDictionary page = pageRefs.GetPageNRelease(index);
            PdfArray box = null;
            if (boxName.Equals("trim"))
                box = (PdfArray)GetPdfObjectRelease(page.Get(PdfName.TRIMBOX));
            else if (boxName.Equals("art"))
                box = (PdfArray)GetPdfObjectRelease(page.Get(PdfName.ARTBOX));
            else if (boxName.Equals("bleed"))
                box = (PdfArray)GetPdfObjectRelease(page.Get(PdfName.BLEEDBOX));
            else if (boxName.Equals("crop"))
                box = (PdfArray)GetPdfObjectRelease(page.Get(PdfName.CROPBOX));
            else if (boxName.Equals("media"))
                box = (PdfArray)GetPdfObjectRelease(page.Get(PdfName.MEDIABOX));
            if (box == null)
                return null;
            return GetNormalizedRectangle(box);
        }
        

 private static void MoveRectangle(PdfDictionary dic2, PdfReader r, int pageImported, PdfName key, String name) {
     Rectangle m = r.GetBoxSize(pageImported, name);
     if (m == null)
         dic2.Remove(key);
     else
         dic2.Put(key, new PdfRectangle(m));
 }