While designing some personal stuff, I encountered troubles copy-pasting a banknote image into Photoshop CS2.
I saved a Dollar bill from the web to my desktop, but trying to open it, even copy-pasting it into Photoshop, I get this warning:
This application does not support printing of banknote images. You can open and edit this image but you will not be able to print it as is. For more information, select the information button below for Internet-based information on restrictions for copying and distributing banknote images or go to rulesforuse.org.
I opened the image with another editor, re-saved it and no success.
I tried with another image from Wikipedia and it worked.
I searched for an explanation and what i found so far is EURion rings. Maybe there are other algorythms.
The EURion constellation is a pattern of symbols incorporated into a number of banknote designs worldwide since about 1996. It is added to help imaging software detect the presence of a banknote in a digital image. Such software can then block the user from reproducing banknotes to prevent counterfeiting using colour photocopiers. Research shows that the EURion constellation is used for color photocopiers and is likely not used for computer software.
Now I know why this happens, but does anyone know how to bypass this Photoshop security, asside installing viral patches?