iTextSharp.text.pdf.PdfContentByte.SetColorFill C# (CSharp) Метод

        public virtual void SetColorFill(BaseColor value)
        {
            PdfWriter.CheckPdfIsoConformance(writer, PdfIsoKeys.PDFISOKEY_COLOR, value);
            int type = ExtendedColor.GetType(value);
            switch (type) {
                case ExtendedColor.TYPE_GRAY: {
                    SetGrayFill(((GrayColor)value).Gray);
                    break;
                }
                case ExtendedColor.TYPE_CMYK: {
                    CMYKColor cmyk = (CMYKColor)value;
                    SetCMYKColorFillF(cmyk.Cyan, cmyk.Magenta, cmyk.Yellow, cmyk.Black);
                    break;
                }
                case ExtendedColor.TYPE_SEPARATION: {
                    SpotColor spot = (SpotColor)value;
                    SetColorFill(spot.PdfSpotColor, spot.Tint);
                    break;
                }
                case ExtendedColor.TYPE_PATTERN: {
                    PatternColor pat = (PatternColor)value;
                    SetPatternFill(pat.Painter);
                    break;
                }
                case ExtendedColor.TYPE_SHADING: {
                    ShadingColor shading = (ShadingColor)value;
                    SetShadingFill(shading.PdfShadingPattern);
                    break;
                }
                default:
                    SetRGBColorFill(value.R, value.G, value.B);
                    break;
            }
        }

        /// <summary>
        /// This method is used to search for the location words in pdf and update it with the words given from replacingText variable
        /// </summary>
        /// <param name="pSearch">Searchable String</param>
        /// <param name="replacingText">Replacing String</param>
        /// <param name="SC">Case Ignorance</param>
        /// <param name="SourceFile">Path of the source file</param>
        /// <param name="DestinationFile">Path of the destination file</param>
        public static void PDFTextGetter(string pSearch, string replacingText, StringComparison SC, string SourceFile, string DestinationFile)
        {
            try
            {
                iTextSharp.text.pdf.PdfContentByte cb     = null;
                iTextSharp.text.pdf.PdfContentByte cb2    = null;
                iTextSharp.text.pdf.PdfWriter      writer = null;
                iTextSharp.text.pdf.BaseFont       bf     = null;

                if (System.IO.File.Exists(SourceFile))
                {
                    PdfReader pReader = new PdfReader(SourceFile);


                    for (int page = 1; page <= pReader.NumberOfPages; page++)
                    {
                        myLocationTextExtractionStrategy strategy = new myLocationTextExtractionStrategy();
                        cb  = stamper.GetOverContent(page);
                        cb2 = stamper.GetOverContent(page);

                        //Send some data contained in PdfContentByte, looks like the first is always cero for me and the second 100,
                        //but i'm not sure if this could change in some cases
                        strategy.UndercontentCharacterSpacing  = (int)cb.CharacterSpacing;
                        strategy.UndercontentHorizontalScaling = (int)cb.HorizontalScaling;

                        //It's not really needed to get the text back, but we have to call this line ALWAYS,
                        //because it triggers the process that will get all chunks from PDF into our strategy Object
                        string currentText = PdfTextExtractor.GetTextFromPage(pReader, page, strategy);

                        //The real getter process starts in the following line
                        List <iTextSharp.text.Rectangle> MatchesFound = strategy.GetTextLocations(pSearch, SC);

                        //Set the fill color of the shapes, I don't use a border because it would make the rect bigger
                        //but maybe using a thin border could be a solution if you see the currect rect is not big enough to cover all the text it should cover
                        cb.SetColorFill(BaseColor.WHITE);

                        //MatchesFound contains all text with locations, so do whatever you want with it, this highlights them using PINK color:

                        foreach (iTextSharp.text.Rectangle rect in MatchesFound)
                        {
                            //width
                            cb.Rectangle(rect.Left, rect.Bottom, 60, rect.Height);
                            cb.Fill();
                            cb2.SetColorFill(BaseColor.BLACK);
                            bf = BaseFont.CreateFont(BaseFont.HELVETICA_BOLD, BaseFont.CP1252, BaseFont.NOT_EMBEDDED);

                            cb2.SetFontAndSize(bf, 9);

                            cb2.BeginText();
                            cb2.ShowTextAligned(0, replacingText, rect.Left, rect.Bottom, 0);
                            cb2.EndText();
                            cb2.Fill();
                        }
                    }
                }
            }
            catch (Exception ex)
            {
            }
        }