I'm using foxit reader on Ubuntu 16.04, but the font size for menus, toolbar, etc. is so incredibly small that I have to actually move closer and squint to read it. In the preferences, there is a section where I can change the font size to 13, 14, or 15, but even 15 is hard to read.

How can I manually change the font size of the GUI just for Foxit Reader? I don't need to increase the size of any other apps, really.

Here's a picture showing how small it is: enter image description here

  • 4
    I have the same issue, there is a section in general preferences (ctrl+K) where you can actually change program UI font size, but the max limit is 15... so it is not useful
    – rsaavedra
    Jun 2, 2017 at 23:56

1 Answer 1


This option is saved in ~/.config/Foxit\ Software/Foxit\ Reader.conf, size of UI font is defined by Linux%20Font= , there you can set this value manually, but only in range 13-15. When you set it higher Foxit assumes it is 14 (at least in my case).

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