I have a 24" iMac at home which at the max resolution (1920 x 1200) is very comfortable for me to see my desktop and read text.

Now at work I have a 27" iMac with a max resolution of 2560 x 1440 which with my poor eyesight makes text extremely tiny and hard to read.

If I decrease my resolution to 1920 x 1080 it's back to being very easy to read, though it makes text in some instances (most notably in terminal) quite blurry and hard to read.

So, how can I increase font sizes for all applications without decreasing my resolution?

  • Guys, any updates on this with the latest Maverick? – yurkennis Oct 23 '13 at 14:47

Apple doesn't have an option for you to do that. However, you can try TinkerTool. You can download it at no cost.

Screenshot taken from TinkerTool website.

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  • The latest version does not support changing system fonts – ManuelSchneid3r Mar 3 '14 at 14:48

Unfortunately, there is no system-wide way to make the content fonts larger across all applications without changing the resolution.

It is possible to change the fonts used by the system, as the other answer points out so well. You may find Tinker Tool to be enough of a solution for your problem.

This question attempts to step through how to make individual programs increase their font size, but it focuses on Lion, not Snow Leopard. Still, you may find some helpful tips there.

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I believe that this can be done with either Tinker Tool System or Mac Pilot, but not with Mountain Lion Cache Cleaner or Cocktail.

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