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
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