Create Interactive Forms in PDF

This sample shows how to print form list information, set up interactive forms (including text, checkbox, radioButton, button, list, Combox, and sign forms, delete forms), and fill out form information

 using ComPDFKit.Import;
using ComPDFKit.PDFAnnotation;
using ComPDFKit.PDFAnnotation.Form;
using ComPDFKit.PDFDocument;
using ComPDFKit.PDFDocument.Action;
using ComPDFKit.PDFPage; 
using System; 
using System.IO; 

namespace InteractiveFormsTest
{
    internal class InteractiveFormsTest
    {
        private static string outputPath =Path.Combine(Path.GetDirectoryName(Path.GetDirectoryName(Path.GetDirectoryName(System.IO.Directory.GetCurrentDirectory()))) ?? string.Empty, "Output", "CS");
          
        static void Main(string[] args)
        {
            Console.WriteLine("Running interactive forms test sample…\r\n");
            SDKLicenseHelper.LicenseVerify();
            if (!Directory.Exists(outputPath))
            {
                Directory.CreateDirectory(outputPath);
            }
            CPDFDocument document = CPDFDocument.InitWithFilePath("CommonFivePage.pdf");
            if (CreateForms(document))
            {
                Console.WriteLine("Create forms done.");
            }
            else
            {
                Console.WriteLine("Create forms failed."); 
            }
            Console.WriteLine("--------------------");
            Console.WriteLine("Done");
            Console.WriteLine("--------------------");
            Console.ReadLine();
        }

        /// <summary>
        /// Create text field.
        /// Text field: used to input text
        /// </summary> 
        static private void CreateTextField(CPDFDocument document)
        {
            CPDFPage page = document.PageAtIndex(0);
            CPDFTextWidget textField = page.CreateWidget(C_WIDGET_TYPE.WIDGET_TEXTFIELD) as CPDFTextWidget;
            textField.SetRect(new CRect( 28, 75, 235, 32));
            textField.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            textField.SetWidgetBgRGBColor(new byte[] {240,255,240});
        }

        /// <summary>
        ///  Create push button.
        ///  Push button:  Click to perform some actions, such as jumping to a page or website.
        /// </summary> 
        static private void CreatePushButton(CPDFDocument document)
        {
            CPDFPage page = document.PageAtIndex(0);
            CPDFPushButtonWidget pushButton1 = page.CreateWidget(C_WIDGET_TYPE.WIDGET_PUSHBUTTON) as CPDFPushButtonWidget;
            pushButton1.SetRect(new CRect(28, 150, 150, 100));
            pushButton1.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            pushButton1.SetWidgetBgRGBColor(new byte[] { 180, 180, 220 });
            pushButton1.SetButtonTitle("Go To Page 2");
            CTextAttribute attribute = new CTextAttribute();
            attribute.FontColor = new byte[] { 0, 0, 0 };
            attribute.FontSize = 14;
            attribute.FontName = "Helvetica";
            pushButton1.SetTextAttribute(attribute);
            CPDFGoToAction gotoAction = new CPDFGoToAction();
            CPDFDestination dest = new CPDFDestination();
            dest.PageIndex = 1;
            gotoAction.SetDestination(document, dest);
            pushButton1.SetButtonAction(gotoAction);
            pushButton1.UpdateFormAp();

            CPDFPushButtonWidget pushButton2 = page.CreateWidget(C_WIDGET_TYPE.WIDGET_PUSHBUTTON) as CPDFPushButtonWidget;
            pushButton2.SetRect(new CRect(168, 150, 290, 100));
            pushButton2.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            pushButton2.SetWidgetBgRGBColor(new byte[] { 180, 180, 220 });
            pushButton2.SetButtonTitle("Go To ComPDFKit");
            CTextAttribute attribute2 = new CTextAttribute();
            attribute2.FontColor = new byte[] { 0, 0, 0 };
            attribute2.FontSize = 14;
            attribute2.FontName = "Helvetica";
            pushButton2.SetTextAttribute(attribute);

            CPDFUriAction uriAction = new CPDFUriAction();
            uriAction.SetUri("https://www.compdf.com/");

            pushButton2.SetButtonAction(uriAction);
            pushButton2.UpdateFormAp();
        }

        /// <summary>
        /// Create ListBox
        /// </summary> 
        static private void CreateListBox(CPDFDocument document)
        {
            CPDFPage page = document.PageAtIndex(0);
            CPDFListBoxWidget listbox = page.CreateWidget(C_WIDGET_TYPE.WIDGET_LISTBOX) as CPDFListBoxWidget; 
            listbox.SetRect(new CRect(28, 330, 150, 230));
            listbox.AddOptionItem(0, "1", "ComPDFKit1");
            listbox.AddOptionItem(1, "2", "ComPDFKit2");
            listbox.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            listbox.SetWidgetBgRGBColor(new byte[] { 200, 180, 180 });
        }

        /// <summary>
        /// Create SignatureField
        /// Provide an area for electronic signatures.
        /// </summary> 
        static private void CreateSignatureField(CPDFDocument document)
        {
            CPDFPage page = document.PageAtIndex(0);
            CPDFSignatureWidget signatureField = page.CreateWidget(C_WIDGET_TYPE.WIDGET_SIGNATUREFIELDS) as CPDFSignatureWidget;
            signatureField.SetRect(new CRect(28, 420, 150, 370));

            signatureField.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            signatureField.SetWidgetBgRGBColor(new byte[] { 150, 180, 210 });
        }

        /// <summary>
        /// Create CheckBox
        /// </summary>
        static private void CreateCheckBox(CPDFDocument document)
        {
            CPDFPage page = document.PageAtIndex(0);
            CPDFCheckBoxWidget checkBox1 = page.CreateWidget(C_WIDGET_TYPE.WIDGET_CHECKBOX) as CPDFCheckBoxWidget;
            checkBox1.SetRect(new CRect(28, 470, 48, 450));
            checkBox1.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            checkBox1.SetWidgetBgRGBColor(new byte[] { 150, 180, 210 });

            CPDFCheckBoxWidget checkBox2 = page.CreateWidget(C_WIDGET_TYPE.WIDGET_CHECKBOX) as CPDFCheckBoxWidget;
            checkBox2.SetRect(new CRect(58, 470, 78, 450));
            checkBox2.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            checkBox2.SetWidgetBgRGBColor(new byte[] { 150, 180, 210 });

            CPDFCheckBoxWidget checkBox3 = page.CreateWidget(C_WIDGET_TYPE.WIDGET_CHECKBOX) as CPDFCheckBoxWidget;
            checkBox3.SetRect(new CRect(88, 470, 108, 450));
            checkBox3.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            checkBox3.SetWidgetBgRGBColor(new byte[] { 150, 180, 210 });
        }

        /// <summary>
        /// Create RadioButton
        /// </summary>
        static private void CreateRadioButton(CPDFDocument document)
        {
            CPDFPage page = document.PageAtIndex(0);
            CPDFRadioButtonWidget radioButton1 = page.CreateWidget(C_WIDGET_TYPE.WIDGET_RADIOBUTTON) as CPDFRadioButtonWidget;
            radioButton1.SetRect(new CRect(28, 500, 48, 480));
            radioButton1.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            radioButton1.SetWidgetBgRGBColor(new byte[] { 210, 180, 150 });
            radioButton1.SetWidgetCheckStyle(C_CHECK_STYLE.CK_CIRCLE);

            CPDFRadioButtonWidget radioButton2 = page.CreateWidget(C_WIDGET_TYPE.WIDGET_RADIOBUTTON) as CPDFRadioButtonWidget;
            radioButton2.SetRect(new CRect(58, 500, 78, 480));
            radioButton2.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            radioButton2.SetWidgetBgRGBColor(new byte[] { 210, 180, 150 });
            radioButton2.SetWidgetCheckStyle(C_CHECK_STYLE.CK_CIRCLE);

            CPDFRadioButtonWidget radioButton3 = page.CreateWidget(C_WIDGET_TYPE.WIDGET_RADIOBUTTON) as CPDFRadioButtonWidget;
            radioButton3.SetRect(new CRect(88, 500, 108, 480));
            radioButton3.SetWidgetBorderRGBColor(new byte[] { 0, 0, 0 });
            radioButton3.SetWidgetBgRGBColor(new byte[] { 210, 180, 150 });
            radioButton3.SetWidgetCheckStyle(C_CHECK_STYLE.CK_CIRCLE);
        }

        /// <summary>
        /// Generate various signatures.
        /// </summary>
        static private bool CreateForms(CPDFDocument document)
        {
            CreateTextField(document);
            CreatePushButton(document);
            CreateListBox(document);
            CreateSignatureField(document);
            CreateCheckBox(document);
            CreateRadioButton(document);

            // Save to pointed path so you can observe the effect.
            string path = Path.Combine(outputPath, "CreateFormsTest.pdf");

            if (!document.WriteToFilePath(path)) 
            {
                return false;
            }
            Console.WriteLine("Browse the changed file in " + path);

            return true;
        }

    }
}