Examples are described herein for imposing print jobs across lane(s) of a print medium web for frame-by-frame printing. A frame rewind distance (FRD) may be set to a length of a longest pattern of the print jobs and a frame repeat length (FRL) may be set to a difference between a frame length and the FRD. For each lane of a first frame of the frame-by-frame printing: patterns of one of the print jobs may be imposed along a length of the lane, and a distance that a tail end of the one of the patterns extends beyond the FRL may be preserved as a respective gap length for the lane in a second frame. For each lane of the second frame of the frame-by-frame printing, patterns of one of the print jobs may be imposed beginning at the respective preserved gap length.