I am trying to write text to my loaded Pdf fields

[Ron Rex]

Hi Friends. I am trying to write text to my loaded Pdf fields. I am assuming I will use this code just not sure where I need to place it...  

  if (fieldCollection.TryGetField("Name", out loadedField))

        {

            (loadedField as PdfLoadedTextBoxField).Text = "Jim Simpson";

        }

I got a little confused with an example I was trying to use because it opens streams and closes streams. 

Below is the code I use to load an existing pdf form and add fields to it. 

using Syncfusion.Pdf;

using Syncfusion.Pdf.Graphics;

using Syncfusion.Pdf.Interactive;

using Syncfusion.Pdf.Parsing;

using System.Collections.Generic;

using System.Diagnostics;

using System.Drawing;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Xml.Linq;

namespace PDFFormSample

{

    class Program

    {

        static void Main(string[] args)

        {

            //Load the existing PDF document.

            string sourceFilePath = "../Data/W3C.pdf";

            byte[] pdfBytes = File.ReadAllBytes(sourceFilePath);

            PdfLoadedDocument existingDocument = new PdfLoadedDocument(pdfBytes);

            //Create the form if the form does not exist in the loaded document

            if (existingDocument.Form == null)

                existingDocument.CreateForm();

            //Load the Page

            PdfPage newPage = (PdfPage)existingDocument.Pages.Add();

            // Create a graphics object to draw on the new page

            PdfGraphics graphics = newPage.Graphics;

            // Add content to the new page (e.g., text, images, etc.)

            //Set the standard font

            PdfFont font = new PdfStandardFont(PdfFontFamily.Helvetica, 16);

            //Draw the string

            newPage.Graphics.DrawString("Job Application", font, PdfBrushes.Black, new PointF(250, 30));

            font = new PdfStandardFont(PdfFontFamily.Helvetica, 12);

            newPage.Graphics.DrawString("Name", font, PdfBrushes.Black, new PointF(30, 50));

            //Create a text box field for name

            PdfTextBoxField textBoxField1 = new PdfTextBoxField(newPage, "Name");

            textBoxField1.Bounds = new System.Drawing.RectangleF(30, 70, 200, 20);

            textBoxField1.ToolTip = "Name";

            existingDocument.Form.Fields.Add(textBoxField1);

            newPage.Graphics.DrawString("Email address", font, PdfBrushes.Black, new PointF(30, 110));

            //Create a text box field for email address

            PdfTextBoxField textBoxField2 = new PdfTextBoxField(newPage, "Email address");

            textBoxField2.Bounds = new RectangleF(30, 130, 200, 20);

            textBoxField2.ToolTip = "Email address";

            existingDocument.Form.Fields.Add(textBoxField2);

            newPage.Graphics.DrawString("Gender", font, PdfBrushes.Black, new PointF(30, 180));

            //Create radio button for gender

            PdfRadioButtonListField employeesRadioList = new PdfRadioButtonListField(newPage, "Gender");

            existingDocument.Form.Fields.Add(employeesRadioList);

            newPage.Graphics.DrawString("Male", font, PdfBrushes.Black, new PointF(60, 200));

            PdfRadioButtonListItem radioButtonItem1 = new PdfRadioButtonListItem("Male");

            radioButtonItem1.Bounds = new RectangleF(30, 200, 20, 20);

            newPage.Graphics.DrawString("Female", font, PdfBrushes.Black, new PointF(160, 200));

            PdfRadioButtonListItem radioButtonItem2 = new PdfRadioButtonListItem("Female");

            radioButtonItem2.Bounds = new RectangleF(130, 200, 20, 20);

            employeesRadioList.Items.Add(radioButtonItem1);

            employeesRadioList.Items.Add(radioButtonItem2);

            newPage.Graphics.DrawString("Which position you are applying for?", font, PdfBrushes.Black, new PointF(30, 240));

            //Create combo box for position

            PdfComboBoxField comboBox = new PdfComboBoxField(newPage, "JobTitle");

            comboBox.Bounds = new RectangleF(30, 260, 100, 20);

            comboBox.BorderColor = new PdfColor(Color.Gray);

            comboBox.ToolTip = "Job Title";

            comboBox.Items.Add(new PdfListFieldItem("Development", "Development"));

            comboBox.Items.Add(new PdfListFieldItem("Support", "Support"));

            comboBox.Items.Add(new PdfListFieldItem("Documentation", "Documentation"));

            existingDocument.Form.Fields.Add(comboBox);

            string sourceFilePath1 = "../Form.pdf";

            //Save the document

            using (FileStream fileStream = new FileStream(sourceFilePath1, FileMode.Open, FileAccess.Write))

            {

                existingDocument.Save(fileStream);

            }

            //close the document

            existingDocument.Close(true);

            //This will open the PDF file so, the result will be seen in default PDF Viewer

             Process.Start("C:\\Samples\\This works write form fields to existing pdf file\\PDFFormSample\\PDFFormSample\\bin\\Form.pdf");

        }

    }

}

[Karmegam Seerangan]

Hi Ron,

Kindly use the following UG documentation to know more about creating, filling and flattening forms (AcroForms and XFA).

To create new form field on PDF page: https://help.syncfusion.com/file-formats/pdf/working-with-forms#creating-a-new-pdf-form

To modify existing form fields in PDF page: https://help.syncfusion.com/file-formats/pdf/working-with-forms#filling-form-fields-in-an-existing-pdf-document

Regards,

Karmegam