how best to convert a pdf to a high-res jpg?

[Josef Lowder]

.
On Tue, 22 Jan 2008 14:49, Kristian Erik Hermansen wrote
> On Jan 22, 2008 2:42 PM, Josef Lowder <joe at actionline.com> wrote:
> > But as a result of your suggestion, I checked man convert
> > and then googled the 'net but have not been able to find a
> > syntax example for the use of the -quality option.
> 
> I think...
> $ convert -quality 100 file.pdf file.jpg

Tried that and got the same (unsatisfactory) result as when I used 
just convert file.pdf file.jpg.  The resulting image has inverted
colors kind of like a negative.  So I tried doing it to file.png 
instead of to .jpg and that produced the correct colors but very 
poor resolution. 

== Someone else suggested:
> http://tug.ctan.org/tex-archive/graphics/a2ping/
> http://www.inf.bme.hu/~pts/sam2p/
>
> a2ping is often included with TeTeX, but I haven't used sam2p.

$ sudo aptitude install texlive-base-bin sam2p 

I'm using Mandriva and do not find either 'aptitude' or 'texlive' 
or 'sam2p' or 'xsane' on my system. 

Hummm.  Now what? 

I know my source pdf file is very high res because when I zoom 
it up to 400%, every detail is very precise and crisp.  The image 
I am trying to convert is a book cover design that can be seen 
at this link: http://www.MostEssential.com/most.pdf

I need to convert this to a jpg so I can get a high-res photo
print of this file.