In a radiographic image capturing apparatus, an object to be examined is compressed and secured between a compression plate and an image capturing base, at a position off-center from a central position of the image capturing base near a subject in a direction along the subject. An opening is defined in the compression plate so as to confront the object to be examined in the off-center position. The radiation source irradiates the object to be examined as well as the opening with radiation from a central angle of the radiation source, which is aligned with a vertical axis of the image capturing base, and which passes through the central position from a predetermined angle that is angularly spaced from the central angle about the central position.