Possible to apply colour overlay in printer driver?

[Bluecube]

We produce worksheets for our staff using a proprietary application. A staff member is dyslexic and has asked if the text could be purple rather than black to make it easier for him to read. There's no way to change the text colour in the application so I've been looking into applying a colour overlay through the printer driver. We use Epson printers and I'm not able to see any such option that changes the colour of the text. Has anyone done something like this and if so how did you go about it?

Thanks

 

[Bluecube]

Thanks all for the help. Due to the way the app works the only colour modification can be made in the printer driver and I’ve not been able to find that option. There is a tab that allows colour modification but this only applies to images and not text.

The solution was to use coloured paper as this apparently has the same effect as changing the colour of the text