If your blog images are ... that allow you to set your image's dimensions. When you click "Insert," Tumblr adds the image to the editing box. You don't have to use HTML to resize a picture in ...

How to Set Windows Media ... picture's handles allows you to resize it interactively. This may be sufficient in many instances. However, when you need to resize an image precisely, right-click ...

This maintains the aspect ratio and the image is not distorted by the change ... There are many apps on mobile devices that allow you to resize images such as PicsArt or the Image Size app.