We are getting a thumbnailer error on a png file of 16
Mpx. This error
is: "Error creating thumbnail: Invalid thumbnail parameters". It appears
there is an upper bound limitation somewhere, since Wikipedia has a
similar problem (e.g., see
http://en.wikipedia.org/wiki/
Category:Old_Ordnance_Survey_map_images).
Is this a hard limit due to limitations of Imagemagick or is there a
global that controls the upper bound on image size that the thumbnailer
can handle?
ImageMagick isn't limited AFAIK. If it has not enough machine memory, it
will start using files as swap (or perhaps the OOM killer gets launched).