An image managing apparatus includes a storage part, an input part, a grouping-processing part, a representative image extraction part, a folding-button preparing part, a folding-screen preparing part and an output part. An image is stored in the storage part. A user's instruction is input by the input part. The grouping-processing part is configured to classify images displayed on a screen into a group for display based on the instruction. The representative image extraction part is configured to extract an image in the group as a representative image of the group. The folding-button preparing part is configured to generate a folding button for displaying the representative image of the group on the screen. The folding-screen preparing part is configured to generate an image-listing screen (“folding screen)”) on which the representative image of the group and an ungrouped image are displayed when the folding-button displayed on the screen is operated.