[OS X TeX] TeXShop: how to remedy "Unknown graphics
Piet van Oostrum
piet at cs.uu.nl
Sun Feb 6 14:35:06 EST 2005
>>>>> Peter Dyballa <Peter_Dyballa at Web.DE> (PD) wrote:
>PD> Maybe I did not understand what the conversion EPS -> PDF does! From
>PD> Apple's grab I thought this step would involve converting vectors to
>PD> bitmaps. This seems to be a false assumption, since it's probably grab that
>PD> cannot vectorize the pixel screen.
Indeed you misunderstood the eps->pdf conversion. And the pixel screen is a
bitmap, not vector.
>PD> When the vector based contents is saved in the PDF output, then I have to
>PD> withdraw my last posting! Bitmaps with bad resolution in EPS won't get
>PD> better, and won't get worse either. But when vectors stay vectors then the
>PD> conversion of EPS to PDF is worth to go!
Not completely true. converting bitmaps from eps to pdf can make them
worse. The standard epstopdf does downsample bitmaps by default.
Piet van Oostrum <piet at cs.uu.nl>
URL: http://www.cs.uu.nl/~piet [PGP]
Private email: piet at vanoostrum.net
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