I'm sorry I don't understand you request. Do you want to replace the images with the plain text or what?

Kinday, if I understood you correctly, you want to add like a signature to the Gift image, if it so, then this is considered as a custom code modification, you will need to do that on your own or hire a programmer who could do that for you. You can do that here: http://www.oxwall.org/market/specialists

Or you can upload the images already with the necessary text but you need to prepare such images in the photoshop.

2-3 years and nothing happens ... no text on the picture no updates nothing .....