Turn Off Type Icon

Hi there,
I was wondering if it’s possible to turn of the type icon when the short code is added to a page. I’ve created a table on a page with a number of cells and the shortcode for a file in each cell. However when the page is displayed the table isn’t displayed uniformly. I replaced the pdf.png file with a 1 pixel transparent png but the table is still displaying as if the full size icon were there (see attached file). Is there any way to correct this?

Many thanks in advance.