level1
Level 1 PostScript.
[read-only property]
level1([out, retval] int *level)
Specifies Level 1 PostScript: uncompresses all images and converts
them to black-and-white (generally not a good idea, unless you need to
print on a Level 1 printer).
This property is only useful as a value for the level property.
VB:
pdf.level = pdf.level1