Re: [Gimp-docs] Set resolution. Bulk

[Kolbjørn Stuestøl <kolbjoern stuestoel no>]

Den 27.05.2012 20:36, skreiv Ulf-D. Ehlert:
> On Sun, May 27, 2012 at 07:41:25PM +0200, Marco Ciampa wrote:
> > On Sun, May 27, 2012 at 12:41:54PM +0200, Kolbjørn Stuestøl wrote:
> [...]
> > Maybe with Imagemagick?
> >
> > http://www.imagemagick.org/Usage/resize/#resample
> >
> > sorry, I'm in a hurry... try it&  tell me if it could do the job for you...
> 	$ convert -units PixelsPerInch -density 144x144 INFILE OUTFILE
> or
> 	$ mogrify -units PixelsPerInch -density 144x144 FILE ...
>
> should do the trick.
>
> But if you change/fix the resolution, you should also consider
> optimizing PNG files with optipng or pngcrush.
>
> Ulf
Thank you both.

$ mogrify -units PixelsPerInch -density 144x144 path/folder/*.png
did the trick. It changed the image resolution for all images in the folder.

Running ImageMagick from the command line worked much the same.

(I spent a couple of hours trying to find a way to run Imagemagick from PHP, but did not find the correct installation. Ie. how to set up PHP to recognize Imagemagick).

Now I am waiting for a rainy day to experiment a bit further wit Imagemagick. :-)

Kolbjoern