ByteScout PDF Suite – C# – Read Values from PDF Form Fields with PDF Extractor SDK

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ByteScout PDF Suite – C# – Read Values from PDF Form Fields with PDF Extractor SDK

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ByteScout-PDF-Suite-C-sharp-Read-Values-from-PDF-Form-Fields-with-PDF-Extractor-SDK.pdf

How to read values from PDF form fields with PDF extractor SDK in C# using ByteScout PDF Suite

This code in C# shows how to read values from PDF form fields with PDF extractor SDK with this how to tutorial

The sample shows instructions and algorithm of how to read values from PDF form fields with PDF extractor SDK and how to make it run in your C# application. ByteScout PDF Suite is the set that includes 6 SDK products to work with PDF from generating rich PDF reports to extracting data from PDF documents and converting them to HTML. This bundle includes PDF (Generator) SDK, PDF Renderer SDK, PDF Extractor SDK, PDF to HTML SDK, PDF Viewer SDK and PDF Generator SDK for Javascript. It can be applied to read values from PDF form fields with PDF extractor SDK using C#.

These C# code samples for C# guide developers to speed up coding of the application when using ByteScout PDF Suite. Simply copy and paste in your C# project or application you and then run your app! If you want to use these C# sample examples in one or many applications then they can be used easily.

You can download free trial version of ByteScout PDF Suite from our website with this and other source code samples for C#.

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Program.cs

      using System;
using System.Xml;
using Bytescout.PDFExtractor;

namespace ReadValuesFromFormFields
{
    class Program
    {
        static void Main(string[] args)
        {
            try
            {
                // Create XMLExtractor interface
                using (XMLExtractor extractor = new XMLExtractor("demo", "demo"))
                {
                    // Load Sample PDF document
                    extractor.LoadDocumentFromFile("filled_form.pdf");

                    // Get PDF document text as XML
                    string xmlText = extractor.GetXML();

                    // Load XML
                    XmlDocument xmlDocument = new XmlDocument();
                    xmlDocument.LoadXml(xmlText);

                    // Select all "control" nodes
                    XmlNodeList formControls = xmlDocument.SelectNodes("//control");

                    if (formControls != null)
                    {
                        foreach (XmlNode formControl in formControls)
                        {
                            XmlAttribute typeAttribute = formControl.Attributes["type"];

                            // Get filled textboxes
                            if (typeAttribute.Value == "editbox")
                            {
                                if (!string.IsNullOrEmpty(formControl.InnerText))
                                {
                                    Console.WriteLine("EDITBOX " + formControl.Attributes["id"].Value + ": " + formControl.InnerText);
                                }
                            }
                            // Get checked checkboxes
                            else if (typeAttribute.Value == "checkbox")
                            {
                                if (formControl.Attributes["state"].Value == "1")
                                {
                                    Console.WriteLine("CHECKBOX " + formControl.Attributes["id"].Value + ": " + formControl.Attributes["state"].Value);
                                }
                            }

                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }

            Console.WriteLine();
            Console.WriteLine("Press any key to exit...");
            Console.ReadLine();
        }
    }
}