Yes, you can do basic image editing functions within WordPress. Here are some basics:
Understanding the Image Editor
[wpmudev-video video=”image-editor”]
Editing Images
[wpmudev-video video=”edit-image”]
Cropping and Scaling an image via the Image Editor
[wpmudev-video video=”image-editor-crop-and-scale”]
Flip, Undo, Redo your image in the Image Editor
[wpmudev-video video=”image-editor-rotate-flip-undo-redo”]
Replacing an Image
[wpmudev-video video=”replace-image”]