c# - iTextsharp CMYK colors result in another color -

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i'm working on little project need create pdf containging table text. table supposed have background color. testing sake i've simplified code this:

            using(var output = new memorystream())             using (var document = new document(pagesize.a4, 0, 0, 50, 120))             {                 pdfwriter.getinstance(document, output);                  document.open();                  var table = new pdfptable(1);                 table.addcell(new pdfpcell(new phrase("blah blah blah")) {backgroundcolor = new cmykcolor(11, 8, 1, 0)});                 document.add(table);                  document.close();                 file.writeallbytes("e:\\test.pdf", output.getbuffer());             }

as see i've set background color. yet somehow it's resulting in different color i'm expecting.

the color seems different somehow

can me figuring out doing wrong?

tia


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