Set the JPEG quality level.
[read/write property] jpegQuality([out, retval] int *quality) jpegQuality([in] int quality)
This property sets the JPEG quality factor, which is a number from 0 to 100. 0 is the lowest quality and highest compression; 100 is the highest quality and lowest compression. You will generally want to use values in the 50-95 range. The default value is 75.
resetParams function resets JPEG quality to the default value
pdf.jpegQuality = 85