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

[Jon M. Hanson]

On Wed, Jan 23, 2008 at 03:29:42PM -0700, Josef Lowder wrote:
> .
> 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. 

You're doing proofs of a publication by printing them at Costco? Any
publisher (including Kinkos) can take a PDF file. I can't believe your
publisher in Michigan would take a JPG file over a PDF file.