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Subject:Acrobat file sizes From:avobert -at- twh -dot- nbg -dot- de (Alexander Von_obert) To:techwr-l -at- lists -dot- raycomm -dot- com Date:12 May 00 21:33:01 +0000
* Antwort auf eine Nachricht von Gilda_Spitz -at- markham -dot- longview -dot- ca an All am 05.0
GG> Recently we've made a decision to save our screen shot files in
GG> JPG format, rather than BMP, to make them more HTML-compatible.
GG> All of a sudden, our Acrobat file sizes are enormous - in the
GG> area of 40 -
GG> 50 MB. My first thought was that the problem was related to the
GG> JPGs, but
GG> those files are much smaller than their BMP counterparts, so
GG> that doesn't make sense.
you have chosen the wrong file format for your purpose. Use GIF instead.
Your BMP files had been BIG, but they were easy to compress - something PDF
has learned since the Version 2 Acrobat. JPG files cannot be compressed as
they are supposed to compress the files by themselves. JPG is very good at
compressing real-word scenes, say photos. If you have screenshots you use very
few colors and have large single-color areas. These can be compressed without
any loss in GIF files.
Greetings from Germany,
Alexander von Obert, Urbanstr. 2, 90480 Nuernberg, Germany
Free-lance technical writer (electronics, software)
Voice +49-911-403903, Fax -403904, BBS -403905 (FIDO 2:2490/1719)
avobert -at- techwriter -dot- de http://www.techwriter.de