Look, i'm only semi-computer literate, so when i saw that you tube vid linked by Neal, i was Zomg it's been tampered with. I've made stuff with photoshop and recognise layer after layer as a sign of handiwork.
But i don't know all that much.
This you tube posted by Penguin:
this shows very clearly that one tiny lack of foresight by th people scanning the document accounts for all of the layers.
that is when scanned with the full version of Adobe Acrobat, there is a small checkbox for Make Searchable(Run OCR). This obviously is a useful feature in many cases. But the process of running OCR (optical character recognition) lifts words and characters it recognizes, leaving the rest.
This can obviously account for the layers phenomenon.
Close but no banana.
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"Enemy submarines are to be called U-Boats. The term submarine is to be reserved for Allied under water vessels. U-Boats are those dastardly villains who sink our ships, while submarines are those gallant and noble craft which sink theirs." Winston Churchill
Last edited by joegrundman; 05-12-11 at 03:45 PM.
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