Hi,
In general I agree, but ..
That assumes any and all differences between the two files are related to watermarking. It would be easy to change enough different things to make simply dropping all differences not doable. Repackage text from the end of one file to the beginning of the next, constantly changing the characters used to generate whitespace (and in unicode there are a large number of different whitespace characters) change used and unused glyphs in fonts, make every image unique, etc. Effectively you are hiding the real watermark changes in a forest of other small meaningless changes. If you dropped everything that was different based on a byte for byte comparison you would be left with a mess that is effectively unreadable without hand work to clean it up. Whitespace in text cleanup might be automated but which version of which image or font are you going to use or do you want to try and edit all of those as well.
So all they need do is make enough changes to render it more bother than it is worth.
Quote:
Originally Posted by Wasgo
There's no risk if anyone wanted to. Take two copies of the newly released version, do a byte by byte comparison. Where differences exist, omit as possible watermarking.
Pirates are really good at this stuff, and don't do it out of pragmatism, they do it out of an unfortunate sense of pride.
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