How to change the text in a pdf document with Libre Office Draw ( the "T" function in the bottom toolbar is not present...) . Tks!

I’m using Libre Office Draw to modify a pdf document, but the the “T” function in the bottom toolbar is not present… Would you please tell me how to make the “T” “re-appear”? Thanks!

What do you mean by T-function? Insert Text box or Font Color?. In general in Draw the text formatting toolbar at bottom only appears if a text box is selected. But you may force it to show by ticking View -> Toolbars -> [x] Text Formatting