I am placing a PDF into an illustrator file and where there should be white in the PDF it is transparent. How can I fix this? I want the PDF to have white where there should be white. When I put a drop shadow on the PDF image it is transparent and where the white should be it has a shadow. I've tried looking at the settings and everything. Please help.
I have dealt with this in the past, and it's quite an easy solution:
You simply add a white box behind your document in the PDF editor.