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At 12/15/2003 09:38 AM, Curtis, Mark wrote:
>I am producing a state comprehensive annual report using Windows XP, Acrobat
>5.05 (full version), Acrobat 6 Reader, Word 2000, the latest version of
>Lotus 123, Illustrator 10. I am only using TrueType fonts (I embed all fonts
>in the Distiller setting). I am
>creating postscript files using the latest Acrobat Distiller printer driver.
>I combine the files using the "rundirex" postscript program provided by
>Adobe; I'm using the Distiller setting (Isaacs) based on Dov Isaac's
>"Reliable PDF Creation in the Enterprise" presentation at the PDF 2001
>Conference West.
>
>I decided to experiment and try reducing my PDF file size. I saved my PDF as
>Postscript, and I then distilled the Postscript file. The resulting file is
>300k smaller (1,500k to 1,200k). When viewing the files in Acrobat (under
>font properties), I did notice that my fonts are now listed as Type 1 fonts
>(embedded subsets); previously they were listed as TrueType fonts (embedded
>subsets). The PDF file seems to print ok and looks fine on screen.
>
>Is redistilling an acceptable practice, or are there some problems I may
>encounter.
>
>Thanks for the help,
>
>Mark Curtis
Yes, there are indeed problems! The fact that your fonts were "converted"
in the process indicates that they have been degraded somehow. When you
"saved your PDF as PostScript" you must have set the option to "convert
TrueType to Type 1" in the "settings." Such conversions remove the TrueType
hinting and result in PostScript with unhinted Type 1 outlines. This may
significantly affect the quality at which small pointsize or ornate text
is displayed or printed. Disable that option for best results.
Redistillation is not generally advised, especially since it mucks up font
names. Assuming that you have Acrobat 6 Professional, you are much better
off to use the built-in PDF optimizer to eliminate bloat in a PDF file
due to features that you don't want or need in your PDF file, including
overly high image resolution.
- Dov
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