iTextSharp.text.pdf.PdfStamperImp.AddAnnotation C# (CSharp) Метод

        internal void AddAnnotation(PdfAnnotation annot, PdfDictionary pageN)
        {
            List<PdfAnnotation> allAnnots = new List<PdfAnnotation>();
            if (annot.IsForm()) {
                fieldsAdded = true;
                AcroFields afdummy = AcroFields;
                PdfFormField field = (PdfFormField)annot;
                if (field.Parent != null)
                    return;
                ExpandFields(field, allAnnots);
            }
            else
                allAnnots.Add(annot);
            for (int k = 0; k < allAnnots.Count; ++k) {
                annot = (PdfAnnotation)allAnnots[k];
                if (annot.PlaceInPage > 0)
                    pageN = reader.GetPageN(annot.PlaceInPage);
                if (annot.IsForm()) {
                    if (!annot.IsUsed()) {
                        Dictionary<PdfTemplate,object> templates = annot.Templates;
                        if (templates != null) {
                            foreach (PdfTemplate tpl in templates.Keys) {
                                fieldTemplates[tpl] = null;
                            }
                        }
                    }
                    PdfFormField field = (PdfFormField)annot;
                    if (field.Parent == null)
                        AddDocumentField(field.IndirectReference);
                }
                if (annot.IsAnnotation()) {
                    PdfObject pdfobj = PdfReader.GetPdfObject(pageN.Get(PdfName.ANNOTS), pageN);
                    PdfArray annots = null;
                    if (pdfobj == null || !pdfobj.IsArray()) {
                        annots = new PdfArray();
                        pageN.Put(PdfName.ANNOTS, annots);
                        MarkUsed(pageN);
                    }
                    else
                       annots = (PdfArray)pdfobj;
                    annots.Add(annot.IndirectReference);
                    MarkUsed(annots);
                    if (!annot.IsUsed()) {
                        PdfRectangle rect = (PdfRectangle)annot.Get(PdfName.RECT);
                        if (rect != null && (rect.Left != 0 || rect.Right != 0 || rect.Top != 0 || rect.Bottom != 0)) {
                            int rotation = reader.GetPageRotation(pageN);
                            Rectangle pageSize = reader.GetPageSizeWithRotation(pageN);
                            switch (rotation) {
                                case 90:
                                    annot.Put(PdfName.RECT, new PdfRectangle(
                                        pageSize.Top - rect.Top,
                                        rect.Right,
                                        pageSize.Top - rect.Bottom,
                                        rect.Left));
                                    break;
                                case 180:
                                    annot.Put(PdfName.RECT, new PdfRectangle(
                                        pageSize.Right - rect.Left,
                                        pageSize.Top - rect.Bottom,
                                        pageSize.Right - rect.Right,
                                        pageSize.Top - rect.Top));
                                    break;
                                case 270:
                                    annot.Put(PdfName.RECT, new PdfRectangle(
                                        rect.Bottom,
                                        pageSize.Right - rect.Left,
                                        rect.Top,
                                        pageSize.Right - rect.Right));
                                    break;
                            }
                        }
                    }
                }
                if (!annot.IsUsed()) {
                    annot.SetUsed();
                    AddToBody(annot, annot.IndirectReference);
                }
            }
        }