PDFsharp Sample: Colors CMYK

Modified on 2015/09/14 10:23 by Thomas Hövel Categorized as PDFsharp Samples, Samples

{s:navigationPrevUpNext|Bookmarks-sample|PDFsharpSamples|CombineDocuments-sample}
This sample shows how to use CMYK colors.
==PDF Output File==

See the PDF file created by this sample:  {s:PdfLink|ColorCMYK-sample%2fColorsCMYK_output.pdf|output.pdf} (78 kB)

==Screen Shots==
Here is a sample screen shot:

{s:ImageThumbLink|PDF file with CMYK squares|ColorCMYK-sample%2fColorsCMYKth.png|ColorCMYK-sample%2fColorsCMYK.png}

==Source Code==

This is the source code the shows how to set the color mode to CMYK:
{s:beginCsharp}
PdfDocument document = PdfReader.Open(filename);
document.Options.ColorMode = PdfColorMode.Cmyk;
&nbsp;
// Set version to PDF 1.4 (Acrobat 5) because we use transparency.
if (document.Version < 14)
  document.Version = 14;
&nbsp;
PdfPage page = document.Pages&#0091;0&#0093;;
&nbsp;
// Get an XGraphics object for drawing beneath the existing content
&nbsp;
XGraphics gfx = XGraphics.FromPdfPage(page, XGraphicsPdfPageOptions.Append);
&nbsp;
gfx.DrawRectangle(new XSolidBrush(XColor.FromCmyk(1, 0.68, 0, 0.12)), new XRect(30, 60, 50, 50));
gfx.DrawRectangle(new XSolidBrush(XColor.FromCmyk(0, 0.70, 1, 0)), new XRect(550, 60, 50, 50));
&nbsp;
gfx.DrawRectangle(new XSolidBrush(XColor.FromCmyk(0, 0, 0, 0)), new XRect(90, 100, 50, 50));
gfx.DrawRectangle(new XSolidBrush(XColor.FromCmyk(0, 0, 0, 0)), new XRect(150, 100, 50, 50));
&nbsp;
gfx.DrawRectangle(new XSolidBrush(XColor.FromCmyk(0.7, 0, 0.70, 1, 0)), new XRect(90, 100, 50, 50));
gfx.DrawRectangle(new XSolidBrush(XColor.FromCmyk(0.5, 0, 0.70, 1, 0)), new XRect(150, 100, 50, 50));
&nbsp;
gfx.DrawRectangle(new XSolidBrush(XColor.FromCmyk(0.35, 0.15, 0, 0.08)), new XRect(50, 360, 50, 50));
gfx.DrawRectangle(new XSolidBrush(XColor.FromCmyk(0.25, 0.10, 0, 0.05)), new XRect(150, 360, 50, 50));
gfx.DrawRectangle(new XSolidBrush(XColor.FromCmyk(0.15, 0.05, 0, 0)), new XRect(250, 360, 50, 50));
{s:endCsharp}

{s:sampleSourceCode}

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PDFsharp Sample: Colors CMYK