Draw Lines and Curves in PDF - C#
PDF SDK sample in C# demonstrating ‘Draw Lines and Curves in PDF’
Program.cs
using System.Diagnostics;
using Bytescout.PDF;
namespace LinesAndCurves
{
/// <summary>
/// This example demonstrates how to draw lines and curves.
/// </summary>
class Program
{
static void Main()
{
// Create new document
Document pdfDocument = new Document();
pdfDocument.RegistrationName = "demo";
pdfDocument.RegistrationKey = "demo";
// If you wish to load an existing document uncomment the line below and comment the Add page section instead
// pdfDocument.Load(@".\existing_document.pdf");
// Add page
Page page = new Page(PaperFormat.A4);
pdfDocument.Pages.Add(page);
Canvas canvas = page.Canvas;
SolidPen solidPen = new SolidPen();
SolidPen dashedPen = new SolidPen();
dashedPen.DashPattern = new DashPattern(new float[] { 2, 2 });
// Draw dashed lines
canvas.DrawLine(dashedPen, 100, 100, 200, 100);
canvas.DrawLine(dashedPen, 200, 100, 200, 200);
canvas.DrawLine(dashedPen, 200, 200, 100, 200);
// Draw besier curve by the same points
canvas.DrawCurve(solidPen, 100, 100, 200, 100, 200, 200, 100, 200);
// Save document to file
pdfDocument.Save("result.pdf");
// Cleanup
pdfDocument.Dispose();
// Open result document in default associated application (for demo purpose)
ProcessStartInfo processStartInfo = new ProcessStartInfo("result.pdf");
processStartInfo.UseShellExecute = true;
Process.Start(processStartInfo);
}
}
}