On Fri, Jun 20, 2008 at 7:42 AM, Anne Wilson cannewilson@googlemail.com wrote:
I've fixed it by uploading a pdf instead of the original jpg, but I'd dearly like to know why firefox thought it should be scaled like that.
Apparently the justification for this is that it makes Firefox work better on PDAs and other small-screen devices. Firefox3 introduced "automatic image scaling" which IE has had for some years. Here's a post where someone describes his frustration with image scaling in IE7 (at least as far as I know Firefox doesn't get confused by DPI settings):
http://weblogs.java.net/blog/chet/archive/2006/10/get_the_artifac.html
What annoys me about this in FF3 is that the feature is on by default and the standard preferences dialog doesn't offer a way to disable it. Instead you have to go into about:config as described here:
http://www.tipstrs.com/tip/683/Scaling-image-in-Firefox
Of course this doesn't help page designers who can't tell whether their visitor's browser has scaling enabled or not.