can i create a software in visual basic like photoshop or micosoft paint?

Paint, Well yes, of course you can build more powerful applications than Paint itself
.NET is a very powerful framework. If used well the power of .NET will create wondrous applications, There's a Graphics Library called GDI+ for VB, and other .NET languages. It comes with VS on install. People say VB is a beginners language, NOPE! It seems simple only when you are on the shallow side, GDI+ with VB can render 3D objects.
Photoshop : You can, but it's not worth, to do cause Photoshop is really really powerful. I am not saying it's impossible, but yes you have to do a lot of work. In the start it's gotta seem easier than C/C++ cause you have all kinds of GUI in Visual Studio. Drag n Drop the controls into the form, but as you add features by features, it's gonna really be tough. Before you start on this massive project, I did recommend to get fresh with some mathematics, cause you're gonna really need it, If you're using GDI+. But in my opinion Start with C++ then Move on to OpenGL, and then start creating your own libraries in C++, and finally start your project.
Adobe : Never Ever, for this don't ever think that you're gonna use VB, I recommend to get a hang of C#, Probably you could create a library in C# for reading PDF's. But for adobe, C is the Best language...
So that's all....