To edit a footer in your PowerPoint slides and include citations or notes, you'll need to access the Header & Footer menu from the Insert tab.

To manually crop a picture in Microsoft Word, Excel, or PowerPoint, select it, and in the Picture Format tab on the ribbon, click the top half of the split "Crop" button.

When you place an image in GIMP it may be bigger or smaller than you want so you will have to resize it to make it the size that you want. There are two ways to resize an image in GIMP and they are ...

When I batch resize images, PowerToys will randomly ignore whatever preset I choose and make some of the images in my batch unusably small (100px in my case). Select a bunch of images, +100 is better ...