Visible difference in CMYK output between versions 8 & 9

It's hard to say exactly what's the problem by using this code snippet. I need more information:

1) What happens with bitmap after this code? The full code sample will be appreciated.

2) How do you get colors?

3) Which editor/image viewer did you use to open the resulting file?

Could you please send me the code sample, base.tif file, and both resulting files generated by GM 8 and 9? My email is y.khoptyan@aurigma.com.

Best regards,

Julia

The problem occurs when there is an assigned color profile and color management is applied. So you can use the following workaround to fix the problem:

var colorProfile = bitmap.ColorProfile;
bitmap.ColorProfile = null;

using (var graphics = bitmap.GetAdvancedGraphics())
{
    //Drawing
}

bitmap.ColorProfile = colorProfile;

Edited by user Sunday, May 7, 2017 11:46:06 PM(UTC)  | Reason: Not specified

Originally Posted by: ps4ps

I have experienced the same issue and this workaround does not fixe or solve the issue.

You are 100% correct... this work around does not help out at all... I had to roll back to version 8 until a permanent fix is applied. It really sucks as I had to shelve a bunch of PDF code that works in 9 and replace it with some iTextSharp hacks.

The problem had place due to the new Graphics.BlendMode property introduced in the version 9 of Graphics Mill. We changed its default value from BlendMode.Normal to BlendMode.None for backward compatibility with the previous version.