Dominika-

Both of these sound like a good strategy.  My issue has always been
determining what the "correct" position actually is.  Maybe some tool in
Acrobat itself gives this information?  I just don't know.

When doing positional comparison, I usually use 1/72"  (i.e. 1 pt) as the
resolution for determining equality of two values.

Ideally, we can come up with something that is relatively easy to include -
it doesn't have to be super fancy.  So if you have a sample PDF, and a table
of known-good x,y start and stop positions for each character, then we can
just use that.  Of course I'll be curious about how you know that the x,y
positions are actually "known good"!

Thanks again,

- K



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