Modifying Image Size by Scale
If you are not concerned with actual width and height of an image, you can specify a scaling percentage to apply to all images with the selected graphic style. This option allows you to modify the size of all images associated with the graphic style in relation to their original sizes. Modifying images in this way retains the original aspect ratio of each image.
To resize images based on a percentage
Open your Stationery design project.
On the View menu, click Style Designer.
On the Project menu, click a target in the Active Target menu option that is an output format that supports this option.
In Graphic Styles, select the graphic style you want to modify.
On the Options tab, specify a percentage value for the Scale % option. For example, if you specify 50, each image with the selected graphic style will be reduced to half its original size.