Font Scaling

Most tips that work with a standard part of a cocoa app (TextEdit, Mail), will work with any other cocoa app. Luckily, the font box is a fairly standard part of the UI, and luckily this means that you can use this tip with loads of applications.


Most cocoa applications have the ability to scale fonts mathematically. This means that you can resize a selection of text containing different sizes while keeping the relative sizing between fonts. It also means that if you want all the text on a page a little bit bigger, instead of selecting each size and changing it a bit bigger (the 12 point to 14 point, the 16 point to 18 point etc.), you can just do it relatively.

Select all the text in your document and open the Font panel ( Usually Format->Font->Show Fonts) and enter "*1.2" or another mathematical expression. The example given will multiply all font sizes by 1.2, but you can do anything, like "/2" to half the size, "*.0.75" to get 75% of the original size.

Also its worth pointing out you can also use addition and subtraction to change the point size, but that won't make the fonts scale relative to each other.
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