Dynamic sized multi line TextBox field in a PDF in C#

Dynamic sized multi line TextBox field in a PDF in C#

To create a dynamic sized multi-line TextBox field in a PDF using C#, you can use a library like iTextSharp or PdfSharp. Here is an example using PdfSharp:

using PdfSharp.Drawing;
using PdfSharp.Pdf;
using PdfSharp.Pdf.Advanced;
using PdfSharp.Pdf.Annotations;
using PdfSharp.Pdf.AcroForms;
using System.Drawing;

// Create a new PDF document
var document = new PdfDocument();

// Add a new page to the document
var page = document.AddPage();

// Add a text box to the page
var textBox = new PdfTextBoxField(page, "textbox");
textBox.Rect = new PdfSharp.Pdf.RectangleF(new PointF(50, 50), new SizeF(200, 100));
textBox.Multiline = true;
textBox.Value = "This is a multiline text box.";

// Add the text box to the page's form fields
var acroForm = PdfAcroForm.GetAcroForm(document, true);
acroForm.Fields.Add(textBox);

// Save the PDF to a file
document.Save("output.pdf");

In this example, a new PDF document is created and a new page is added to the document. Then, a new PdfTextBoxField object is created and added to the page's form fields. The Rect property is set to define the position and size of the text box. The Multiline property is set to true to allow for multiple lines of text. Finally, the Value property is set to the initial value of the text box.

Examples

  1. "C# iTextSharp Dynamic TextBox in PDF with Auto-sizing"

    Code:

    // C# iTextSharp Dynamic TextBox in PDF with Auto-sizing
var pdfDocument = new Document();
var writer = PdfWriter.GetInstance(pdfDocument, new FileStream("output.pdf", FileMode.Create));
pdfDocument.Open();

var textBox = new PdfPCell(new Phrase("Dynamic Text Content"));
textBox.FixedHeight = 0; // Auto-sizing
pdfDocument.Add(new PdfPTable(new[] { textBox }));

pdfDocument.Close();

    Description: Use iTextSharp to create a dynamic-sized multi-line TextBox field in a PDF document with auto-sizing based on content.

  2. "C# PdfSharp Dynamic TextBox with Variable Height"

    Code:

    // C# PdfSharp Dynamic TextBox with Variable Height
var document = new PdfDocument();
var page = document.AddPage();
var gfx = XGraphics.FromPdfPage(page);

var font = new XFont("Arial", 12);
var textBoxHeight = gfx.MeasureString("Dynamic Text Content", font).Height;
gfx.DrawString("Dynamic Text Content", font, XBrushes.Black, new XRect(10, 10, page.Width - 20, textBoxHeight));

document.Save("output.pdf");

    Description: Utilize PdfSharp to create a dynamic TextBox with variable height in a PDF document based on the content.

  3. "C# Dynamic TextBox in PDF with MigraDoc"

    Code:

    // C# Dynamic TextBox in PDF with MigraDoc
var document = new Document();
var section = document.AddSection();

var paragraph = section.AddParagraph("Dynamic Text Content");
paragraph.Format.Font.Size = Unit.FromPoint(12);

document.Save("output.pdf");

    Description: Create a dynamic TextBox in a PDF document using MigraDoc with default formatting and layout.

  4. "C# Dynamic Multi-line TextBox with Word Wrap in PDF using iTextSharp"

    Code:

    // C# Dynamic Multi-line TextBox with Word Wrap in PDF using iTextSharp
var pdfDocument = new Document();
var writer = PdfWriter.GetInstance(pdfDocument, new FileStream("output.pdf", FileMode.Create));
pdfDocument.Open();

var phrase = new Phrase("Dynamic Text Content with Word Wrap");
var paragraph = new Paragraph(phrase);
paragraph.Alignment = Element.ALIGN_LEFT;
pdfDocument.Add(paragraph);

pdfDocument.Close();

    Description: Create a dynamic multi-line TextBox with word wrap in a PDF document using iTextSharp.

  5. "C# PdfSharp Dynamic TextBox with Line Breaks"

    Code:

    // C# PdfSharp Dynamic TextBox with Line Breaks
var document = new PdfDocument();
var page = document.AddPage();
var gfx = XGraphics.FromPdfPage(page);

var font = new XFont("Arial", 12);
var textContent = "Dynamic Text Content\nwith Line Breaks";
var textBoxHeight = gfx.MeasureString(textContent, font).Height;
gfx.DrawString(textContent, font, XBrushes.Black, new XRect(10, 10, page.Width - 20, textBoxHeight));

document.Save("output.pdf");

    Description: Generate a dynamic TextBox in a PDF document using PdfSharp, incorporating line breaks in the text.

  6. "C# iTextSharp Dynamic TextBox with Padding in PDF"

    Code:

    // C# iTextSharp Dynamic TextBox with Padding in PDF
var pdfDocument = new Document();
var writer = PdfWriter.GetInstance(pdfDocument, new FileStream("output.pdf", FileMode.Create));
pdfDocument.Open();

var phrase = new Phrase("Dynamic Text Content");
var paragraph = new Paragraph(phrase);
paragraph.SetPadding(10f);
pdfDocument.Add(paragraph);

pdfDocument.Close();

    Description: Create a dynamic TextBox with padding in a PDF document using iTextSharp.

  7. "C# Dynamic TextBox with Border in PDF using PdfSharp"

    Code:

    // C# Dynamic TextBox with Border in PDF using PdfSharp
var document = new PdfDocument();
var page = document.AddPage();
var gfx = XGraphics.FromPdfPage(page);

var font = new XFont("Arial", 12);
var textContent = "Dynamic Text Content";
var textBoxHeight = gfx.MeasureString(textContent, font).Height;

gfx.DrawRectangle(XPens.Black, new XRect(10, 10, page.Width - 20, textBoxHeight));
gfx.DrawString(textContent, font, XBrushes.Black, new XRect(12, 12, page.Width - 24, textBoxHeight));

document.Save("output.pdf");

    Description: Generate a dynamic TextBox with a border in a PDF document using PdfSharp.

  8. "C# iTextSharp Dynamic TextBox with Background Color in PDF"

    Code:

    // C# iTextSharp Dynamic TextBox with Background Color in PDF
var pdfDocument = new Document();
var writer = PdfWriter.GetInstance(pdfDocument, new FileStream("output.pdf", FileMode.Create));
pdfDocument.Open();

var phrase = new Phrase("Dynamic Text Content");
var paragraph = new Paragraph(phrase);
paragraph.BackgroundColor = BaseColor.LightGray;
pdfDocument.Add(paragraph);

pdfDocument.Close();

    Description: Create a dynamic TextBox with a background color in a PDF document using iTextSharp.

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