[scribus] pdf file size once more

[K.King]

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The question is, of course, how can a 38 mb container hold all the data in
a 527 mb container?  Does InDesign use some compression technique that
Scribus does not?  If so, why not?  After all, an almost 14:1 compression
ratio is significant!
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Might need to know more about what the "pre-press folks" exactly did.
If you could post the pdf's somewhere, maybe able to interrogate them a 
little to see.
Depending on the version and method used to construct PDF yes there can 
be use of compression, and if we are talking about text then there could 
be significant differences in size.
Graphics also have a big bearing, what sort of graphics are embedded and 
how are they handled?
K.