1237a69106b6
tech



Hello Mark - 

Once again, just for the record: 

If you think you may want to do further manipulation of a
graphic saving to JPG (JPEG) is a mistake. Loading and
re-saving as a JPG _again_ will result in futher losses until
the graphic becomes a dotted mess. 

AFAIK you can never completely 'turn off' the lossiness of a
lossy format even when set to zero. 

> ====================== 

RJT>>> Start out with a .gif file that's up around 600-700K, and
RJT>>> removing this sort of junk cuts the size in half.
RJT>>> Convert it to .jpg and the end result is down around
RJT>>> 40-60k! I guess that padding lets them look like they're
RJT>>> filling up a cdrom, when in reality they're not doing
RJT>>> anything close. 

WC>>> Someone sent me a PDF with just a short message and
WC>>> photo, around .5 meg, later sent same photo JPG, 66K and
WC>>> the image was larger. 

RJT>> The jpeg format is compact, but the compression method is
RJT>> "lossy" I'm told. The thing is, if I do a conversion from
RJT>> one to another and the result looks okay to me, then it
RJT>> doesn't matter. 

ml> you can turn the compression way way down (off?) in many
ml> graphics manipulation programs... of course, you'll have a
ml> larger resultant file... i notice that many pictures use
ml> way more memory than drive space, anyway... 

>
>        ,                          ,
>      o/      Charles.Angelich      \o       ,
>       __o/
>     / >          USA, MI           < \   __\__
 

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