vDPI
Set the vertical print resolution.
[read/write property]
vDPI([out, retval] int *dpi)
vDPI([in] int dpi)
This property sets the vertical print resolution, in dots per inch
(DPI).
Similarly, the hDPI
property sets the horizontal print resolution.
The horizontal and vertical resolutions are typically the same. (There are exceptions, such as some chart printers.)
resetParams
resets this to its default value, which is to use the
driver's default resolution.
VB:
pdf.hDPI = 300
pdf.vDPI = 300