I'm trying to do something similar as well, except it's for when I view RSS feeds.
Everytime I open an RSS feed, I hold "Command +" to zoom into the maximum zoom.
I want to find a way to set the default zoom to maximum.
I tried setting the Message Font size in the Preferences of Mail, but this doesn't re-size images. I assume this is the same thing you're trying to achieve, but with mail messages.
Is there a way to do this?
Sounds similar Axeavius. I think that there really ought to be a feature whereby you can set your own default text size to a level that is comfortable to the viewer/user.
The iPad has this option. Pages has this feature I think, although I haven't checked it myself.
It should also be available in Lion... that's what I think. Old people like to use Apple too!
I actually figured out a fix. Sort of. At least for Safari.
Ok, so you use Style Sheet, a CSS file.
Don't worry, you don't need to know how to code.
I used this site:
Basically, you use TextEdit to create a plain text CSS file called defaultzoom.css.
Make sure to open the TextEdit Preferences to make sure the Format is set to Plain text.
Inside the file, type or copy/paste this:
Then, when you save it, choose Use .css, or else it will change it to a .txt file.
In Safari, open the Preferences --> Advanced tab.
Then, open the Style Sheet dropdown, select Other..., and find your .css file
It should work by refreshing the page; if not, just restart Safari.
If you don't like the setting, you can test out different numbers and save the file again.