Teach your children if it aint theirs, dont steal it.
I think you are getting copyright infringment mixed up with theft. Copying != Stealing, that is just a false claim perpetuated by the recording industries in an attempt to associate P2P networks with a much more serious crime.
So does Adobe. I just noticed I wasn't allowed to open a scanned picture of a 5 Euro bill here at work using Photoshop CS, new and shiny and slow, obviously checking every picture for signs of $ and ? in them.
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What's next?
I read about this a few days myself. (btw, workaround: Open the file in illustrator, and click import to photoshop). I'd certainly like to have a discussion with the guys who decided to implement such a measure. I can't see what the reasoning was behind it - "I'm sure this will stop the counterfeiters, who won't be smart enough to use an older version of our products"?.
When opening the image of a banknote, Adobe provides a link to a page, informing the user of guidelines for LEGALLY reproducing currency. For example, making the image 50% smaller or 150% larger, or overwriting parts with the text "SPECIMEN". Unfortunatly, users are not able to implement the required distortions because their image editing software turns against them! It's this principal which is important - I expect Photoshop CS to be an image editing tool, nothing more, nothing less - I do not believe that software should be making moral decisions on my behalf.