GIMP 2

How to edit a photo on GIMP step by step:

Change the size of an image:

1. Firts of all click on the image
2. Go to Image
3. Scale image options
4. choose the size you need the photo to be in. 

 Crop an Image:

1. Go to the toolbar
2. transform tools
3. tools
4. Crop& resize
5. Choose what you want to crop
6. Save

 How to change to a RGB format (assignment 2)

Change to RGB format.

1. Firts of all click on the image
2. Go to Image
3. Go to Mode
4.  Choose the format you want. (RGB)