Oct 25, · Using Fonts in Adobe Illustrator. Posted on 25th October 1- Ensure your font has been unzipped and installed in your PC. If you are unsure how to do this, you can find the tutorial HERE. 2- Open Ai and either create a new file or open a file you require text on. 3- Once your file is open select the text icon on the left in your toolbar. Changing all fonts at once. Let’s say I’ve imported my chart into Adobe Illustrator and don’t like BitstreamVeraSans Roman any more, I’d like to change it to something else sroaden.siteng all of the text in your visualization to a specific font is simple. When opening an Adobe Acrobat PDF document on Mac OS X Lion to edit in Adobe Illustrator CS6, I got the message:> The font Helvetica-Narrow-Bold is missing. Affected text will be displayed using a substitute sroaden.site font QuickTypePi is missing.