Joachim Van der Auwera makes some magical things to make me read } } It indicates the number of bytes used for each scan line. } This is important as some programs round line increment to multiples of two } or four bytes.
Not "some" programs, but the specification of the graphic format: original QL mode (4/8) must be rounded on word new GD2 mode (even the 1 bit per pixel: B&W) must be rounded on long. The only bad thing about the PIC format is that you cannot easily ask to ignore the pixel on the left part: the first pixel of the line is always used. It's only a burden for screen-catcher as either: - they force to round the left origin ( by 8 for a mode 4 for instance, things are easier with high-colour GD2 mode) - they have to perform some shifting themself before saving the area into the file.
