how can I print the paper without the black border around a text box?

I need to write into the text box on PDF but I don’t want to show the black text-box boundaries when I print that paper.
You can see this photo to help

Screen Shot 2020-06-16 at 3.19.52 PM.png

Not sure about the origin of the PDF - but if it is a form you got from someone else, please note that there are more advanced tools to fill PDF forms than LibreOffice Draw.

Hello,

if it is a text box / shape: Right click the text box -> Line -> Tab: Line -> Style: -none-

Hope that helps.