I tried to programatically set a soft mask to an image by using the Addobe PDF Library, in order to make part of the image transparent. I also have a PDF file that was created in the same way but contains the same image as not transparent. The image color space is RGB.
When I open two files in Adobe Reader 9.2.0 the colors are not the same. The colors in the file which contains the transparent image are a bit darker. The colors are different not only inside the image box, but in all page area. I also tried to open the same file in GSView and there was no such problem.
Can I fix this by changing the Adobe reader preferences, or this is a problem in the code that genereates the PDF?
If this is not the correct forum to ask this question, please direct me to the correct forum