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"); } } }