A bit of history taken from Wikipedia:
http://en.wikipedia.org/wiki/Rosetta_%28software%29
"
Rosetta is a dynamic binary translator for Mac OS X which allows many PowerPC applications to run on certain Intel-based Macintosh computers without modification. Apple released Rosetta in 2006 when it transitioned the Macintosh platform from the PowerPC to Intel processor microarchitecture. The name "Rosetta" is a reference to the Rosetta Stone, the discovery of which made it possible to comprehend and translate Egyptian hieroglyphs.
Rosetta is based on QuickTransit technology.[1] It has no graphical user interface, which led Apple to describe Rosetta as "the most amazing software you'll never see."[2]
Rosetta was initially included with Mac OS X v10.4.4 "Tiger", the version that was released with the first Intel-based Macintosh models.[3]
Mac OS X v10.6 "Snow Leopard" does not include Rosetta by default but retains an option in the installer for the user to include it. It can also be automatically installed by the system if needed at a later time.
Mac OS X v10.7 "Lion" neither includes nor supports Rosetta at all. Therefore, with Lion, the current Macintosh platform drops support for PowerPC applications.
" WIKIPEDIA.
The discs wich came with a scan are mainlly PowerPC.
Epson no more do Scan software, driver yes to be used by Image Capture or other.
They are all the same, want to sell hardware not software.
For me, To stay at a reasonable file size limit, I do clear choice between what will be B&W and color.
In Image Capture : the Black and White can be treated directly in PDF, using:
- Image correction :
- Contrast to full
- Brightness one step
With color I have quite no choice, JPEG:
- Image correction
- Brightness +3
After in a viewer I do a color autolevel.
If I want it in PDF, save in PDF and finally apply a "in house" Filter from ColorSync Utility.
I don't use the built in "reduce file size", it's too extrem and the results are very poor.
Regards
B.