Colors

Docotic.Pdf Library Help > Samples > Graphics > Colors

This sample shows how to use colors.

Docotic.Pdf library supports Gray, RGB and CMYK colors. Corresponding classes are PdfGrayColor, PdfRgbColor and PdfCmykColor.

Use PdfCanvas.Pen.Color and PdfCanvas.Brush.Color properties to set color of a pen or a brush to be used on canvas. Pens are used to stroke lines, brushes are used to fill areas and shapes.

CopyC#

using System.Diagnostics;
using System.Drawing;

namespace BitMiracle.Docotic.Pdf.Samples
{
    public static class Colors
    {
        public static void Main()
        {
            // NOTE: 
            // When used in trial mode, the library imposes some restrictions.
            // Please visit http://bitmiracle.com/pdf-library/trial-restrictions.aspx
            // for more information.

            PdfDocument pdf = new PdfDocument();

            PdfCanvas canvas = pdf.Pages[0].Canvas;

            canvas.Brush.Color = new PdfRgbColor(255, 0, 0);
            canvas.Pen.Color = new PdfRgbColor(0, 255, 255);
            canvas.Pen.Width = 3;

            canvas.DrawEllipse(new RectangleF(10, 50, 200, 100), PdfDrawMode.FillAndStroke);

            string pathToFile = "Colors.pdf";
            pdf.Save(pathToFile);
            pdf.Dispose();

            Process.Start(pathToFile);
        }
    }
}

CopyVB.NET

Imports System.Diagnostics
Imports System.Drawing

Imports BitMiracle.Docotic.Pdf

Namespace BitMiracle.Docotic.Pdf.Samples
    Public NotInheritable Class Colors
        Public Shared Sub Main()
            ' NOTE: 
            ' When used in trial mode, the library imposes some restrictions.
            ' Please visit http://bitmiracle.com/pdf-library/trial-restrictions.aspx
            ' for more information.


            Dim pdf As New PdfDocument()
            Dim canvas As PdfCanvas = pdf.Pages(0).Canvas

            canvas.Brush.Color = New PdfRgbColor(255, 0, 0)
            canvas.Pen.Color = New PdfRgbColor(0, 255, 255)
            canvas.Pen.Width = 3

            canvas.DrawEllipse(New RectangleF(10, 50, 200, 100), PdfDrawMode.FillAndStroke)

            Dim pathToFile As String = "Colors.pdf"
            pdf.Save(pathToFile)
            pdf.Dispose()

            Process.Start(pathToFile)
        End Sub
    End Class
End Namespace