how do i change my forum post's from text to a image/banner?

Hello,

I do not understand what you are specifically asking for, could you please explain your question?

Do you mean the topic title?

yes the topic title

Sorry, but no.

Heya @Red Rose like SLGray said, you can't convert a text node to an image. But I think making the text unselectable would result in what you're aiming for
There are actually two ways to do this. You can choose whichever you prefer.

1. Using CSS

Administration Panel >> Display >> Colors >> CSS Stylesheet and add this code:

Code:

a.topictitle { user-select: none; }

2. Using JavaScript

Administration Panel >> Modules >> HTML & JavaScript >> Javascript codes management (make sure Javascript codes are enabled) >> Create a new Javascript

Title: Unselectable Topic Titles
Placement: In all the pages

Javascript code:

Code:

$('a.topictitle').disableSelection;

Whichever one you pick, they should disable people from selecting the topic titles. Sorry that there's really no way to convert text into an image without using an image hosting site or the PrntScr key. I hope this helps you 

@Ace 1 if you do that, how will you open and read the topic?

@SLGray using that code doesn't disable users from clicking the topic title, only from highlighting the text, thus making it seem like an image.