In case you overlooked it in the README.ENG file, here again is Info about
the File Pixel.DAT:

The resident VDI delivers (at least on ST-Computer) a false value for the Pixel
size. To correct this, MYDRAW at its start attempts to read the file PIXEL.DAT
from the directory in which MD.PGR is located.
When this is possible and the File Entry contains
XSIZE=280
YSIZE=280
(or other Value after the "="), so becomes this Value for
the Pixel size (in Micrometers) used by the VDI. This Proofreading allows indeed
Not with it is the 1:1 Representation on You Monitor configured. It must the
Pixel sizes registered become, that at the Production of the Character sets,
which are located in the ASSIGN.SYS for the Monitor screen set.
For the ST in the Monochrome mode and the from Atari delivered Fonts are
this (at least about) the above named Value.

Earlier Versions of MYDRAW have itself to the Value of the VDI
left, the extent the Text objects were drawn. For the with
older MD Versions created Drawings further to edit,
recommend it itself the File Pixel.DAT to delete, rename
or with one the in the README described Methods configure.

Use the e.g in Connection with Graphic cards a VDI use,
which in relationship to The You Being used Fonts, the right Value deliver,
PIXEL.DAT should be conformed to the graphic card driver.

_________________________________________
(*) The error is naturally relative. When you in the Monochrome mode
an active screen width of 24CM is reached, where the Value the the Atari-
VDI delivered indeed correct, true but not-withstanding not with the Atari-
fonts as furnished.