Turn ON Snap feature from Window menu, and Snap to- choose All, it will indicate when objects snaps each other, off course you need to move object manualy, choose move tool and move pictures
If by flat pictures it is referring to Photoshop, then it is a tool used to glue layers together. This helps when adding textures and combining multiple images.
you must specify what you want to do to get good answer
photoshop is good for that kind of thing :D
You can use Windows Paint and cut and paste the picture together or you can use Photoshop! :D
Compositing in Photoshop is when an image is comprised by combining two or more other images together.
Menu Item is set of similar commands, actions, filters grouped together in list in Photoshop.
When two rainbows are put together in photoshop.
i think there are pictures of them together
Actually both come handy and it all depends on the situation you are facing. There is no doubt Photoshop is king when it comes to graphic design for mostly anything. But InDesign is more to get publications together. Think of the pages and text of a publication like a magazine where all these elements come together. Photoshop cannot do this, at least not in an easy way. I should add that I like to use Illustrator for logos and I combine the power of Photoshop most of the time too. Basically you are "bridging" the 2 programs for your advantage. You can also use Photoshop and InDesign together, or Photoshop and Fireworks, Dreamweaver and Photoshop, etc. As you get good you will know what works for you and what saves you time.
Just use Paint. Open two windows at the same time, mark one of the pictures and enlarge the frame around the other. Press Control + C and open the other window. Press Control + V and your picture will now be in the window. Move it around and do whatever you like. If you have Photoshop you could blur the line between the pictures or play with frames.
when multiple atoms come together what is the result
If you're talking about changing different fonts in multiple layers to one font at the same time, the easiest way is to do an individual select of all the text layers together, then change the font. The font change will apply to all the selected text layers simultaneously.