If you mean adding more fonts than the 29 available; at the moment there isn't a way to add these into Photoshop Touch.
Can you please add Unicode fonts, when ever I type Arabic, I just get a box with an X in it on the image. This is for all fonts in the program. It looks fine in the input box.
Please fix this.
How to get fonts in Photoshop touch:
* Email yourself the font files you want to use.
* Download the app AnyFont in the AppStore
* Open the email,and download the font on your ipad.
* Tap "open with AnyFont App"
* Then install.