Handling Interactive PDF Forms in C# and .NET

Complete code

´╗┐using System;
using System.IO;
using SautinSoft;
using SautinSoft.Pdf;
using SautinSoft.Pdf.Content;

namespace Sample
{
    class Sample
    {
        /// <summary>
        /// Export form fields data to fdf/xfdf/json document.
        /// </summary>
        /// <remarks>
        /// Details: https://sautinsoft.com/products/pdf/help/net/developer-guide/export-interactive-forms.php
        /// </remarks>
        static void Main(string[] args)
        {
            // Before starting this example, please get a free 100-day trial key:
            // https://sautinsoft.com/start-for-free/

            // Apply the key here:
            // PdfDocument.SetLicense("...");

            string pdfFile = Path.GetFullPath(@"..\..\..\FormFilled.pdf");

            using (var document = PdfDocument.Load(pdfFile))
            {
                //Export form data as fdf stream.
                var fdfFile = new FileStream("fdfOut.fdf", FileMode.Create);
                document.Form.ExportData(fdfFile, SautinSoft.Pdf.Forms.PdfFormDataFormat.FDF);

                //Export form data to xfdf file.
                document.Form.ExportData("xfdfOut.xfdf");

                //Export form data to json file.
                document.Form.ExportData("jsonOut.json");
            }
        }
    }
}

Download


If you need a new code example or have a question: email us at support@sautinsoft.com or ask at Online Chat (right-bottom corner of this page) or use the Form below:



Questions and suggestions from you are always welcome!

We are developing .Net components since 2002. We know PDF, DOCX, RTF, HTML, XLSX and Images formats. If you need any assistance with creating, modifying or converting documents in various formats, we can help you. We will write any code example for you absolutely free.