Open existing Pdf document and add pages to the document.

Question

I am trying to open an existing pdf document and add Page(s) to it. Below is just a line of my code, but I need to add another page and create my fields on this new page. Adding a Syncfusion.Pdf.PdfLoadedPage seems to be different from adding a Syncfusion.pdf.pdfpage.

//Load the page

PdfLoadedPage loadedPage = loadedDocument.Pages[0] as PdfLoadedPage;

I downloaded a sample project using this link. How to add form fields in an existing PDF file using C# and VB.NET | Syncfusion. I am developing in .Net Maui on windows so not sure if this sample will work for me. However, it does open a Pdf document, but the problem is that it overlays the page on the existing documents page as oppossed to writing on a new page.

Ravikumar Baladhandapani · Answer

We can add a form field to the newly inserted page in the
existing pdf document. Please refer the below code snippet,

PdfLoadedDocument loadedDocument = new PdfLoadedDocument(docStream);
              //Insert a new page in the beginning of the document.
              loadedDocument.Pages.Insert(0);
              if (loadedDocument.Form == null)
                 
  loadedDocument.CreateForm();
              //Load the page
              PdfPage page =
  loadedDocument.Pages[0] as PdfPage;
   
              //Set the
  standard font
              PdfFont font =
  new
  PdfStandardFont(PdfFontFamily.Helvetica, 16);
              //Draw the string      
             
  page.Graphics.DrawString("Job
  Application", font, PdfBrushes.Black, new PointF(250, 30));
              font = new PdfStandardFont(PdfFontFamily.Helvetica, 12);

page.Graphics.DrawString("Name", font, PdfBrushes.Black, new PointF(30, 50));
              //Create a text box field for name
              PdfTextBoxField
  textBoxField1 = new
  PdfTextBoxField(page, "Name");
             
  textBoxField1.Bounds = new RectangleF(30, 70, 200, 20);
             
  textBoxField1.ToolTip = "Name";
             
  loadedDocument.Form.Fields.Add(textBoxField1);

page.Graphics.DrawString("Email
  address", font, PdfBrushes.Black, new PointF(30, 110));
              //Create a text box field for email address
             
  PdfTextBoxField textBoxField3 = new PdfTextBoxField(page, "Email
  address");
             
  textBoxField3.Bounds = new RectangleF(30, 130, 200, 20);
              textBoxField3.ToolTip = "Email address";
             
  loadedDocument.Form.Fields.Add(textBoxField3);

page.Graphics.DrawString("Gender", font, PdfBrushes.Black, new PointF(30, 180));
              //Create radio button for gender
              PdfRadioButtonListField
  employeesRadioList = new
  PdfRadioButtonListField(page, "Gender");
             
  loadedDocument.Form.Fields.Add(employeesRadioList);
             
  page.Graphics.DrawString("Male", font, PdfBrushes.Black, new PointF(60, 200));
              PdfRadioButtonListItem
  radioButtonItem1 = new
  PdfRadioButtonListItem("Male");
             
  radioButtonItem1.Bounds = new RectangleF(30, 200, 20, 20);
             
  page.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);

Please refer the below documentation for further reference.https://help.syncfusion.com/file-formats/pdf/working-with-pages#inserting-pages-in-a-documenthttps://github.com/SyncfusionExamples/PDF-Examples/tree/master/Pages/Insert-pages-in-a-PDF-document/https://help.syncfusion.com/file-formats/pdf/working-with-forms?cs-save-lang=1&cs-lang=csharphttps://github.com/SyncfusionExamples/PDF-Examples/tree/master/Forms/Add-the-textbox-to-an-existing-PDF-documentKindly try the above code snippet on your end and let us know
, if you need any further assistance on this.