1. A method comprising: receiving an optimized view of a presenter centered within a presenter image frame and having been generated by a presenter device; determining that a participant image, generated by a participant device, has a distorted view relative to an optimized view of a participant within a corresponding participant image frame for a web-based videoconference with the presenter; generating, from the optimized view of the presenter, a distorted image of the presenter having a distortion corresponding to the distorted view of the participant image in the corresponding participant image frame; and sending, to a display of the participant device having generated the participant image, the distorted image of the presenter corresponding to the distorted view of the participant in the participant image frame, enabling the participant to adjust the participant device to minimize the distorted view in the participant image frame.