Re: [gentoo-user] PDF to png/jpg/...

[meino.cramer@gmx.de]

Florian Philipp <lists@f_philipp.fastmail.net> [09-05-10 12:35]:
> meino.cramer@gmx.de schrieb:
> > Hi,
> > 
> > does anyone know a trick/package, which allows my to
> > convert the pages of a pdf file to images via the commandline 
> > (useable from a script).
> > 
> > I have a/LOT/ of datasheets of electronics and want to make
> > something like a "pdf gallery" to find pdfs faster...
> > 
> > Thanks a lot for any help in advance!
> > Kind regards,
> > Meino Cramer
> > 
> 
> You can use pdftopnm (app-text/poppler) to generate bitmap images from
> your pdfs. Then you can use pnmtopng (media-libs/netpbm) to create pngs
> from them. I suppose there are also tools for creating jpegs and such
> alike but I haven't looked yet.
> 
> You will probably need some tweaking to get optimal results but the
> process should be straight forward.
> 
> Make sure you have enough disk space spare. Those pnms can be quiet huge.
> 

Thanks a lot for all tipe!
I will use pdftoppm now.
Here is a quick script written on the commandline to do this job.
(I use zsh.)

mkdir PDFviews
cd PDFviews
for i in ../*.pdf ../*.PDF
do
fn=${i:r}
fn=${fn:t}
fn=${fn}.png
pdftoppm -f 1 -l 1 $i > tmp.ppm
ppmtojpeg < tmp.ppm > $fn
done
rm -f tmp.ppm

Have a nice sun(ny)day !
Meino


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