Information processing apparatus that displays preview image on display device, and image forming apparatus

An information processing apparatus comprising:

• an operation device that receives an instruction inputted by a user;
• a display device having a rectangular shape including long sides and short sides;
• a rotary mechanism that allows the display device to rotate between a landscape orientation in which the long sides are opposed in an up-down direction, and a portrait orientation in which the short sides are opposed in the up-down direction;
• a sensor that detects which of the landscape orientation and the portrait orientation the display device is assuming;
• and
• a control device including a processor, and configured to act, when the processor executes a control program, as a controller that:
• displays, on the display device, a first preview screen including a preview image display region for displaying a preview image of an image represented by image data, and displays the preview image in the preview image display region, such that edges of the preview image opposed in the up-down direction become parallel to the long side of the display device, when the landscape orientation of the display device is detected by the sensor;
• displays a second preview screen, in which the preview image display region has been expanded, on the display device, when the sensor detects that the display device has been shifted from the landscape orientation to the portrait orientation, in a state where the first preview screen is displayed on the display device, and displays the preview image in an enlarged size in accordance with the expansion, such that the edges of the preview image opposed in the up-down direction become parallel to the short side of the display device;
• displays, when the sensor detects that the display device has been shifted from the portrait orientation to the landscape orientation, in a state where the second preview screen is displayed on the display device, and a job assigned with respect to the image data corresponding to the preview image is temporarily suspended, a message urging the user to input an instruction on whether to resume the job;
• resumes the job when the operation device receives a resumption instruction to resume the job;
• and
• keeps from resuming the job when the operation device receives a suspension instruction restricting resumption of the job.