A controlling device may determine an output resolution according to one type of file format selected from a plurality of types of file format. The output resolution may be a resolution of image data to be included in a target file of a generation target. The plurality of types of file format may include a first type of file format and a second type of file format. The controlling device may determine a first resolution as the output resolution in a first case where the selected file format is the first type of file format, and determine a second resolution different from the first resolution as the output resolution in a second case where the selected file format is the second type of file format.