Bug with High Contrast

[irv]

The option in preferences to override a document's colors has a problem in that backgrounds aren't always interpreted as such. It appears that some of the background is misinterpreted as "line art." I'm attaching a PDF that shows this problem. I encourage you to check it out using the Accessibility presets (white text on black, etc.) in XChange Viewer. I have noticed this in Powerpoint presentations that were converted to PDF using Acrobat.

[Bhikkhu Pesala]

I see the difference between Adobe Reader and PDF-XChange. I'm not sure that the background is misinterpreted though. If I open the file in PagePlus there is a white rectangle on each page behind the text, so my guess is that PDF-XChange is interpreting the file literally.

[Ivan - Tracker Software]

Yes, there is white rectangle on each page. Acrobat treats such rectangles as a background if overlap area of such rectangles is more than 50% of page's area. We will not realize such logic at all -- in such simple case this logic works, but into many cases it will produce a wrong result.

[Ivan - Tracker Software]

Well. We can try to add similar logic as Adobe in this case, but it will be optional.

[irv]

Oh good. Out of curiosity, are text boxes from Microsoft Powerpoint true rectangle line art or are they otherwise distinct? I wonder if Tracker may be able to come up with something more clever than Adobe's "simple logic."