Text enjoys the same popularity whatever it is in PDF documents or in word files. Without it, people can hardly show their real purpose even with the help of images, tables, graphics or hyperlinks. Spire.PDF for WPF not only enables you to easily draw text in PDF document, but also allows you to align, rotate, transform Text and set text font & color in minutes.
Before you start, please make sure that Spire.PDF for WPF (or Spire.Office for WPF) is correctly installed on your system. Please follow the below procedure to realize this task.
Step 1: Create a new project
- Create a new project in WPF Application
- Add a button in MainWindow and set the button Content property to be "Run".
- Add Spire.Pdf.Wpf.dll and System.Drawing as references. After adding the namespaces, you can view the below codes.
[C#]
using System.Drawing;
using Spire.Pdf;
using Spire.Pdf.Graphics;
namespace WPFPDFtext
{
///
/// Interaction logic for MainWindow.xaml
///
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
private void button1_Click(object sender, RoutedEventArgs e)
{
}
}
}
[VB.NET]
Imports System.Drawing Imports Spire.Pdf Imports Spire.Pdf.Graphics Namespace WPFPDFtext ''' ''' Interaction logic for MainWindow.xaml ''' Public Partial Class MainWindow Inherits Window Public Sub New() InitializeComponent() End Sub Private Sub button1_Click(sender As Object, e As RoutedEventArgs) End Sub End Class End Namespace
Step 2: Draw text of various styles in PDF document
Create a new PDF document and add a page in it
[C#]
//Create a pdf document.
PdfDocument doc = new PdfDocument();
// Create one page
PdfPageBase page = doc.Pages.Add();
[VB.NET]
'Create a pdf document. Dim doc As New PdfDocument() 'Create one page Dim page As PdfPageBase = doc.Pages.Add()
Draw text in the page
[C#]
private static void DrawText(PdfPageBase page)
{
//save graphics state
PdfGraphicsState state = page.Canvas.Save();
//Draw text - brush
String text = "Text,turn Around! Go! Go! Go!";
PdfPen pen = PdfPens.DeepSkyBlue;
PdfSolidBrush brush = new PdfSolidBrush(System.Drawing.Color.Blue);
PdfStringFormat format = new PdfStringFormat();
PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 18f, PdfFontStyle.Italic);
SizeF size = font.MeasureString(text, format);
RectangleF rctg
= new RectangleF(page.Canvas.ClientSize.Width / 2 + 10, 180,
size.Width / 3 * 2, size.Height * 3);
page.Canvas.DrawString(text, font, pen, brush, rctg, format);
//restor graphics
page.Canvas.Restore(state);
}
[VB.NET]
Private Shared Sub DrawText(page As PdfPageBase)
'save graphics state
Dim state As PdfGraphicsState = page.Canvas.Save()
'Draw text - brush
Dim text As [String] = "Text,turn Around! Go! Go! Go!"
Dim pen As PdfPen = PdfPens.DeepSkyBlue
Dim brush As New PdfSolidBrush(System.Drawing.Color.Blue)
Dim format As New PdfStringFormat()
Dim size As SizeF = font.MeasureString(text, format)
Dim rctg As New RectangleF(page.Canvas.ClientSize.Width / 2 + 10, 180, size.Width / 3 * 2, size.Height * 3)
page.Canvas.DrawString(text, font, pen, brush, rctg, format)
'restor graphics
page.Canvas.Restore(state)
End Sub
Align PDF text. This step allows you to align text and align text in rectangle
[C#]
private static void AlignText(PdfPageBase page)
{
//Draw the text - alignment
PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 20f);
PdfSolidBrush brush = new PdfSolidBrush(System.Drawing.Color.DarkSeaGreen);
PdfStringFormat leftAlignment = new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);
page.Canvas.DrawString("Left!", font, brush, 0, 40, leftAlignment);
page.Canvas.DrawString("Left!", font, brush, 0, 60, leftAlignment);
PdfStringFormat rightAlignment = new PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Middle);
page.Canvas.DrawString("Right!", font, brush, page.Canvas.ClientSize.Width, 40, rightAlignment);
page.Canvas.DrawString("Right!", font, brush, page.Canvas.ClientSize.Width, 60, rightAlignment);
PdfStringFormat centerAlignment
= new PdfStringFormat(PdfTextAlignment.Center, PdfVerticalAlignment.Middle);
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!",
font, brush, page.Canvas.ClientSize.Width / 2, 40, centerAlignment);
}
private static void AlignTextInRectangle(PdfPageBase page)
{
//Draw the text - align in rectangle
PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 10f);
PdfSolidBrush brush = new PdfSolidBrush(System.Drawing.Color.Blue);
RectangleF rctg1 = new RectangleF(0, 70, page.Canvas.ClientSize.Width / 2, 100);
RectangleF rctg2
= new RectangleF(page.Canvas.ClientSize.Width / 2, 70, page.Canvas.ClientSize.Width / 2, 100);
page.Canvas.DrawRectangle(new PdfSolidBrush(System.Drawing.Color.LightBlue), rctg1);
page.Canvas.DrawRectangle(new PdfSolidBrush(System.Drawing.Color.SkyBlue), rctg2);
PdfStringFormat leftAlignment
= new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Top);
page.Canvas.DrawString("Left! Left!", font, brush, rctg1, leftAlignment);
page.Canvas.DrawString("Left! Left!", font, brush, rctg2, leftAlignment);
PdfStringFormat rightAlignment
= new PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Middle);
page.Canvas.DrawString("Right! Right!", font, brush, rctg1, rightAlignment);
page.Canvas.DrawString("Right! Right!", font, brush, rctg2, rightAlignment);
PdfStringFormat centerAlignment
= new PdfStringFormat(PdfTextAlignment.Center, PdfVerticalAlignment.Bottom);
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush, rctg1, centerAlignment);
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush, rctg2, centerAlignment);
}
[VB.NET]
Private Shared Sub AlignText(page As PdfPageBase)
'Draw the text - alignment
Dim font As New PdfFont(PdfFontFamily.Helvetica, 20F)
Dim brush As New PdfSolidBrush(System.Drawing.Color.DarkSeaGreen)
Dim leftAlignment As New PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle)
page.Canvas.DrawString("Left!", font, brush, 0, 40, leftAlignment)
page.Canvas.DrawString("Left!", font, brush, 0, 60, leftAlignment)
Dim rightAlignment As New PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Middle)
page.Canvas.DrawString("Right!", font, brush, page.Canvas.ClientSize.Width, 40, rightAlignment)
page.Canvas.DrawString("Right!", font, brush, page.Canvas.ClientSize.Width, 60, rightAlignment)
Dim centerAlignment As New PdfStringFormat(PdfTextAlignment.Center, PdfVerticalAlignment.Middle)
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush, page.Canvas.ClientSize.Width / 2, 40, centerAlignment)
End Sub
Private Shared Sub AlignTextInRectangle(page As PdfPageBase)
'Draw the text - align in rectangle
Dim font As New PdfFont(PdfFontFamily.Helvetica, 10F)
Dim brush As New PdfSolidBrush(System.Drawing.Color.Blue)
Dim rctg1 As New RectangleF(0, 70, page.Canvas.ClientSize.Width / 2, 100)
Dim rctg2 As New RectangleF(page.Canvas.ClientSize.Width / 2, 70, page.Canvas.ClientSize.Width / 2, 100)
page.Canvas.DrawRectangle(New PdfSolidBrush(System.Drawing.Color.LightBlue), rctg1)
page.Canvas.DrawRectangle(New PdfSolidBrush(System.Drawing.Color.SkyBlue), rctg2)
Dim leftAlignment As New PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Top)
page.Canvas.DrawString("Left! Left!", font, brush, rctg1, leftAlignment)
page.Canvas.DrawString("Left! Left!", font, brush, rctg2, leftAlignment)
Dim rightAlignment As New PdfStringFormat(PdfTextAlignment.Right, PdfVerticalAlignment.Middle)
page.Canvas.DrawString("Right! Right!", font, brush, rctg1, rightAlignment)
page.Canvas.DrawString("Right! Right!", font, brush, rctg2, rightAlignment)
Dim centerAlignment As New PdfStringFormat(PdfTextAlignment.Center, PdfVerticalAlignment.Bottom)
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush, rctg1, centerAlignment)
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush, rctg2, centerAlignment)
End Sub
Rotate PDF text
[C#]
private static void RotateText(PdfPageBase page)
{
//save graphics state
PdfGraphicsState state = page.Canvas.Save();
//Draw the text - transform
PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 10f);
PdfSolidBrush brush = new PdfSolidBrush(System.Drawing.Color.DarkOrchid);
PdfStringFormat centerAlignment
= new PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle);
float x = page.Canvas.ClientSize.Width / 2;
float y = 380;
page.Canvas.TranslateTransform(x, y);
for (int i = 0; i < 12; i++)
{
page.Canvas.RotateTransform(30);
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush, 20, 0, centerAlignment);
}
//restor graphics
page.Canvas.Restore(state);
}
[VB.NET]
Private Shared Sub RotateText(page As PdfPageBase)
'save graphics state
Dim state As PdfGraphicsState = page.Canvas.Save()
'Draw the text - transform
Dim font As New PdfFont(PdfFontFamily.Helvetica, 10F)
Dim brush As New PdfSolidBrush(System.Drawing.Color.DarkOrchid)
Dim centerAlignment As New PdfStringFormat(PdfTextAlignment.Left, PdfVerticalAlignment.Middle)
Dim x As Single = page.Canvas.ClientSize.Width / 2
Dim y As Single = 380
page.Canvas.TranslateTransform(x, y)
For i As Integer = 0 To 11
page.Canvas.RotateTransform(30)
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush, 20, 0, centerAlignment)
Next
'restor graphics
page.Canvas.Restore(state)
End Sub
Transform PDF text
[C#]
private static void TransformText(PdfPageBase page)
{
//save graphics state
PdfGraphicsState state = page.Canvas.Save();
//Draw the text - transform
PdfFont font = new PdfFont(PdfFontFamily.Helvetica, 18f);
PdfSolidBrush brush1 = new PdfSolidBrush(System.Drawing.Color.LightSeaGreen);
PdfSolidBrush brush2 = new PdfSolidBrush(System.Drawing.Color.CadetBlue);
page.Canvas.TranslateTransform(20, 200);
page.Canvas.ScaleTransform(1f, 0.6f);
page.Canvas.SkewTransform(-10, 0);
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush1, 0, 0);
page.Canvas.SkewTransform(10, 0);
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush2, 0, 0);
page.Canvas.ScaleTransform(1f, -1f);
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush2, 0, -2 * 18);
//restor graphics
page.Canvas.Restore(state);
}
[VB.NET]
Private Shared Sub TransformText(page As PdfPageBase)
'save graphics state
Dim state As PdfGraphicsState = page.Canvas.Save()
'Draw the text - transform
Dim font As New PdfFont(PdfFontFamily.Helvetica, 18F)
Dim brush1 As New PdfSolidBrush(System.Drawing.Color.LightSeaGreen)
Dim brush2 As New PdfSolidBrush(System.Drawing.Color.CadetBlue)
page.Canvas.TranslateTransform(20, 200)
page.Canvas.ScaleTransform(1F, 0.6F)
page.Canvas.SkewTransform(-10, 0)
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush1, 0, 0)
page.Canvas.SkewTransform(10, 0)
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush2, 0, 0)
page.Canvas.ScaleTransform(1F, -1F)
page.Canvas.DrawString("Text,turn Around! Go! Go! Go!", font, brush2, 0, -2 * 18)
'restor graphics
page.Canvas.Restore(state)
End Sub
Step 3: Save and launch the file
[C#]
//Save doc file.
doc.SaveToFile("DrawText.pdf");
doc.Close();
//Launching the Pdf file.
System.Diagnostics.Process.Start("DrawText.pdf");
[VB.NET]
'Save doc file.
doc.SaveToFile("DrawText.pdf")
doc.Close()
'Launching the Pdf file.
System.Diagnostics.Process.Start("DrawText.pdf")
Effective Screeshot:
