object moved inside a workseet and how to not move anymore

Hello! i have inserted a pdf file inside a excel file. i have a tabel and every how has his pdf file inserted. I saw that i can move that pdf file wherever i want inside that worksheet. Is there any set up to make it unmovable? i want that pdf to stay only on that column and not be moved by anyone.

thank you! Hope i have been clear enough regarding my request.