Photoshop

Common tools.
4.Crop tool: Allows you to edit your photo by cutting pieces of it off
5.Lasso tool: Allows you to select a certain part of the image and any edits only affect the selected area.
6.Text tool: Allows you to add text your image, you can edit how much space the text box takes up.
7. You use command-Z to undo an image on a mac pc and CTRL-Z on a pc
8. To undo more than 1 thing you go to WIndow-HIstory
9. To rotate an image go to the image menu and select Image Rotation
10. To change a crop box before you actually crop you can use the anchor points to resize and curve the box.
11. You are telling photoshop what dimensions your photo should come out in.
12. Usually a resolution of 150 to 200 ppi
13. Magazines use a ppi of 250 or more.