Home Security Plastic Stickers are stuck on my glass door. How can I remove them without damaging the glass?

I have some “HOME SECURITY” Plastic stickers stuck on my glass doors and windows. I want to remove them. But they don’t peal out. Scraping also does not work. The glue on them is much too stubborn. Is there any chemical or solvent that will remove them safely without damaging the glass.

Powered by Yahoo! Answers