But how can i get Full HD if 2 mbs is the limit?
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............I dont think a 2 MB pic can be considered Full HD 

Stoke basically adds a black outline to the text that makes it pop more, Drop Shadow is what it says, adds a shadow of your text to the backdrop. Both of these are features of Adobe Photoshop, but I will assume that other photo editing apps have them as well. Personally I also like to use 3D extrusion, inner glow, outer glow, and bevel & emboss in addition to stroke and drop shadow...but not texture, I just don't care for it.What is stroke and drop shadow
just watched some vids