I added a Print button, but the page doesn't look so great. Help needed.

I added a print button to my project using:

window.print();

This prints the page, however, just my text and svg file is rendered. Below are my questions/issues with how this looks:

1. Is there a way to hide/show certain elements on the page?

2. I'm also loading png files, which don't render when printed.

3. The project only prints in the upper left corner (about 1/4 of the page) rather than a full 8.5 x 11.

4. Would also like to remove the title, web address, page numbers and date that shows in the four corners.