Fill in PDF interactive forms in C# and VB.NET

PDF .Net supports filling out PDF interactive forms and automatically updates the appearance of filled-in fields.

Various types of form fields, such as text, radio button, check box, combo box, and list box can be filled in uniformly, using the PdfField.Value property, as shown in the following example.

Complete code

using System;
using System.IO;
using SautinSoft;
using SautinSoft.Pdf;
using SautinSoft.Pdf.Content;

namespace Sample
{
    class Sample
    {
        /// <summary>
        /// Fill in PDF interactive forms.
        /// </summary>
        /// <remarks>
        /// Details: http://sautinsoft/products/pdf/help/net/developer-guide/fill-in-pdf-interactive-forms.php
        /// </remarks>
        static void Main(string[] args)
        {
            string pdfFile = Path.GetFullPath(@"..\..\..\form.pdf");

            using (var document = PdfDocument.Load(pdfFile))
            {
                document.Form.Fields["FullName"].Value = "Jane Doe";
                document.Form.Fields["ID"].Value = "0123456789";
                document.Form.Fields["Gender"].Value = "Female";
                document.Form.Fields["Married"].Value = "Yes";
                document.Form.Fields["City"].Value = "Berlin";
                document.Form.Fields["Language"].Value = new string[] { "German", "Italian" };
                document.Form.Fields["Notes"].Value = "Notes first line\rNotes second line\rNotes third line";

                document.Save("FormFilled.pdf");
            }

        }
    }
}

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