What about a type of grease to help get the pedals off?
Unless there is a lot of corrosion on your bike in other areas, chances are the pedals are just tight because that is how they get, and whoever installed them probably put his all into it. Grease won't help to remove them. (However, grease the threads heavily before reinstalling them!) If there is corrosion, you can try a penetrating solvent like "liquid wrench."
The Park "anti-seize" compound you provided the url for is actually for preventing galvanic corrosion, a phenomenon that occurs when two metals of a different alloy come into contact with each other (like titanium and steel).

What you more likely need is more leverage, or a better way to position your body so you use IT as leverage. This was one of my favorite things to show women in bike maintenance classes. With pedals, it often helps to position yourself next to the bike with one arm going over or through the bike, with one hand on the opposing crank arm, holding it in place while you try to loosen the pedal on the opposite side with your other arm. There is no part on a bike that women can't loosen/tighten if they know how to best position the tool and their body behind that tool for maximum leverage. Also, make sure your body is out of the way should the pedal break free suddenly. Again, don't ask me how I know this