Most jams, especially raspberry and blackberry, are seedless. But jams with seeds are very difficult to find. I can't make my own jam because I don't know how (call me crazy, but it's true)...and, even if I could, I don't have the equipment needed to make it. The only jam available with seeds seems to be strawberry.
You might have to serf the web and locate a store that sells seeded jams
Seeded jams are delish.....