Fujitsu ScanSnap iX500 Operator's Manual page 69

The following shows the estimated file size when scanning one side of a color document.
Sample document
Estimated image data size (KB)
Automatic
Color mode
resolution
Color 381.9
Gray 319.5
B&W 234.6
Specification
Paper type
Normal catalog
Paper size
A4
File format
PDF
Compression rate
3
Normal Better
260.9 381.9
221.3 319.5
151 234.6
69
System Requirements
Best Excellent
698 2136.9
562.2 1788.4
445.4 1452