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Filter Watermark Text - C#

PDF Extractor SDK sample in C# demonstrating ‘Filter Watermark Text’

using System.Diagnostics;
using System.Drawing;
using Bytescout.PDFExtractor;

namespace ExtractText
    class Program
        static void Main(string[] args)
            // Create Bytescout.PDFExtractor.TextExtractor instance
            TextExtractor extractor = new TextExtractor();
            extractor.RegistrationName = "demo";
            extractor.RegistrationKey = "demo";

            // Load sample PDF document

            // Filter text using text filter
            extractor.AddFilter(@"^COPY$", caseSensitive: true, useRegex: true);

            // Filter text using appearance filter
            // extractor.AddFilter("Arial", fontSize: 203, exclude: true);

            // Save extracted text to file

            // Cleanup

            // Open result file in default associated application
            ProcessStartInfo processStartInfo = new ProcessStartInfo(@".\result.txt");
            processStartInfo.UseShellExecute = true;

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