I'll take a stab at it.
1. You can use the Snipping tool, or you can just press the print button on the keyboard, and pasted on an image program like paint, paint.net, photoshop. The short cut key for paste is CTRL + V. Oh you can also paste it on programs like Wordpad and I assume Word, and then save the image.
2. Not sure of the question. Perhaps if you save the page, open it with Word and then saving it as a PDF. But I don't deal with PDFs so I don't know.
3. You can copy them, or cut them by right clicking on the file and selecting copy or cut, or you can highlight the file and press CTRL + C to copy it, or CTRL + X to cut them, and you can paste it in another location by right clicking on that location and selecting paste, or by going to that location and pressing CTRL + V. Or you can grab the file and drag it to the new location, or you can grab the file with the right mouse button to the new location, and tiny window will pop out asking you if you want to move it there or copy it there.