Am Tuesday 16 June 2009 16:00:05 schrieb Olivier Ripoll:

Thanks, Oliver, for clarifying this

Wolfgang

> Wolfgang Engelmann wrote:
> > Am Tuesday 16 June 2009 14:08:43 schrieben Sie:
> >
> > Thanks Uwe,
> >
> > but do you know why the 575kb sized jpg becomes after
> > convertion to .png 2.8MB?
> > (i used convert)
>
> Hi,
>
> jpeg is more aggressive than png: It compresses more, but destroys the
> image a little. png does not produce any artefact. You have no interest
> to convert a jpg to a png, because the png image will have the jpeg
> artefacts.
> You could try to convert your eps to png.
>
> - if your eps is a vectorial image, then it should not be so big and you
> could use it directly or convert it to pdf.
> - if your eps contains an photo, then use jpeg.
> - if your eps contains an picture, but not a photo (i.e. a non-vectorial
> drawing), you may prefer png to avoid jpeg artefacts.
>
> Best regards,
>
> Olivier



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Wolfgang Engelmann
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