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many PDF Files are now created with
Acrobat 8 (as an abs Minimum) > 10
This supports Page Streaming ??? AT LAST ! but only after ALL pages are downloaded (> delay) ie it still downloads in the background
So . . . beware ! . . . it IS SO Slow!
- These PDFs keep downloading in the background if you are not wary & can chew up your PC resources.
- AND in VISTA if you have both Reader and Acrobat editor open or if you open. multiple PDF. . . > IE & and / or Reader CRASHES
- ie PDF IS NOT PAGE SERVED whereas for example DJVU is. ( > our original “Flip” format > 10years ago but now redundant > & discontinued ! )
( but then DJVU seemed to have been unwittingly sabotaged by the original Flip owners Lizardtech / Celartem in favor of “disguised format” publishers
but WE still perservered ! now evolved into various “FlipPage” formats > FlipHTML5 being the latest and most “brilliant”
Of course with cable ISDN>NBN etc these large multi-page PDF’s are
now arguably less of a problem re Download speed etc
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original FLIP generally better with 
really are all but obsolete 
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