The example demonstrates how to draw subscript or superscript text adjusting the text baseline using ByteScout PDF SDK.
Program.vb:
VB
'*******************************************************************
' ByteScout PDF SDK
'
' Copyright © 2016 Bytescout, https://bytescout.com
' ALL RIGHTS RESERVED
'
'*******************************************************************
Imports Bytescout.PDF
''' <summary>
''' This example demonstrates how to draw subscript or superscript text adjusting the text baseline using.
''' </summary>
Class Program
Shared Sub Main()
' Create new document
Dim pdfDocument = New Document()
pdfDocument.RegistrationName = "demo"
pdfDocument.RegistrationKey = "demo"
' Add page
Dim page = New Page(PaperFormat.A4)
pdfDocument.Pages.Add(page)
Dim font = New Font("Arial", 16)
Dim brush = New SolidBrush()
Dim stringFormat = New StringFormat()
Dim xPosition As Single = 20
' Draw normal string
page.Canvas.DrawString("Normal text ", font, brush, xPosition, 50, stringFormat)
xPosition += font.GetTextWidth("Normal text ")
' Draw subscript string
stringFormat.Rise = -5
page.Canvas.DrawString("Subscript", font, brush, xPosition, 50, stringFormat)
xPosition += font.GetTextWidth("Subscript")
' draw superscript string
stringFormat.Rise = +5
page.Canvas.DrawString("Superscript", font, brush, xPosition, 50, stringFormat)
xPosition += font.GetTextWidth("Superscript")
' Draw the baseline
Dim pen = New SolidPen(New ColorRGB(0, 0, 255))
pen.Opacity = 50
page.Canvas.DrawLine(pen, 20, 50 + font.Size, xPosition, 50 + font.Size)
' Save document to file
pdfDocument.Save("result.pdf")
' Cleanup
pdfDocument.Dispose()
' Open document in default PDF viewer app
Process.Start("result.pdf")
End Sub
End Class
Program.cs:
C#
//*******************************************************************
// ByteScout PDF SDK
//
// Copyright © 2016 ByteScout - https://bytescout.com
// ALL RIGHTS RESERVED
//
//*******************************************************************
using System.Diagnostics;
using Bytescout.PDF;
namespace SuperscripAndSubscript
{
/// <summary>
/// This example demonstrates how to draw subscript or superscript text adjusting the text baseline.
/// </summary>
class Program
{
static void Main()
{
// Create new document
Document pdfDocument = new Document();
pdfDocument.RegistrationName = "demo";
pdfDocument.RegistrationKey = "demo";
// Add page
Page page = new Page(PaperFormat.A4);
pdfDocument.Pages.Add(page);
Font font = new Font("Arial", 16);
Brush brush = new SolidBrush();
StringFormat stringFormat = new StringFormat();
float xPosition = 20;
// Draw normal string
page.Canvas.DrawString("Normal text ", font, brush, xPosition, 50, stringFormat);
xPosition += font.GetTextWidth("Normal text ");
// Draw subscript string
stringFormat.Rise = -5;
page.Canvas.DrawString("Subscript", font, brush, xPosition, 50, stringFormat);
xPosition += font.GetTextWidth("Subscript");
// draw superscript string
stringFormat.Rise = +5;
page.Canvas.DrawString("Superscript", font, brush, xPosition, 50, stringFormat);
xPosition += font.GetTextWidth("Superscript");
// Draw the baseline
Pen pen = new SolidPen(new ColorRGB(0, 0, 255));
pen.Opacity = 50;
page.Canvas.DrawLine(pen, 20, 50 + font.Size, xPosition, 50 + font.Size);
// Save document to file
pdfDocument.Save("result.pdf");
// Cleanup
pdfDocument.Dispose();
// Open document in default PDF viewer app
Process.Start("result.pdf");
}
}
}