Closed source, not as compact, and they expire, sort of. Adobe owns the IP and has obsoleted earlier versions, from what I recall. One of the features of epubs is compatibility, if memory serves. Better for digital archives.
interesting.
pdfs are so common nowadays i forgot they are adobe's lol
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That's intentional. I never forget. I'm also old enough to remember how things were in before times.
paper..?
And pre-pdf ubiquity.
for some reason i thought we were closer in age :P
Who knows.
well, i'm a late bloomer anyway ;3
