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

[Josef Lowder]

.
On Wed, 23 Jan 2008 16:17, Jeremy C. Reed wrote
> On Wed, 23 Jan 2008, Josef Lowder wrote:
> 
> > I tried that ($ pdfimages -j most.pdf most.jpg) and that worked great 
> > to produce an excellent, high resolution result (27.5-meg) with this 
> > name: most.jpg-000.ppm ... but with only part of the original pdf 
> > content showing. Some layers vanished. 
> > 
> > I used: convert most.jpg-000.ppm most2.jpg and got a result 1/10th 
> > the ppm file size: 2,736,590 -- great resolution, but missing parts.
> 
> I thought you just wanted the image.
> 
> Instead of "pdfimages" use "pdftoppm" instead (also from xpdf or 
> poppler-utils).
> 
> > Not sure what you mean by that.  I don't think I need to "enlarge" 
> > anything.  I just need a jpg with high enough resolution to make 
> > a good photo print.
> 
> Why not print direct from the PDF then? Converting a PDF to JPEG 
> doesn't seem correct for printing since you then (usually) need to 
> convert the JPEG back to a printable format.

Thanks Jeremy.  I think this 'pdftoppm' will do what I need.

The reason I need a jpg is to get photos printed (from Costco) 
for four reasons: #1 to make sure all the colors are correct, 
#2 to be able to make individual photo prints in various sizes 
for various marketing needs, #3 to send a photo print color proof 
to our book printer in Michigan for color verification/matching, 
and #4 because I do not have a high-res color printer and I am not 
aware of any place locally where I can get a pdf files printed in 
high-res color and various sizes.  I called Kinko's and didn't get
a satisfactory response (or price) from them.

Thanks again to you and to all who offered suggestions.