View Single Post
Old 08-28-2010, 02:23 PM   #4
jswinden
Astrophotographer
jswinden ought to be getting tired of karma fortunes by now.jswinden ought to be getting tired of karma fortunes by now.jswinden ought to be getting tired of karma fortunes by now.jswinden ought to be getting tired of karma fortunes by now.jswinden ought to be getting tired of karma fortunes by now.jswinden ought to be getting tired of karma fortunes by now.jswinden ought to be getting tired of karma fortunes by now.jswinden ought to be getting tired of karma fortunes by now.jswinden ought to be getting tired of karma fortunes by now.jswinden ought to be getting tired of karma fortunes by now.jswinden ought to be getting tired of karma fortunes by now.
 
jswinden's Avatar
 
Posts: 5,497
Karma: 6981326
Join Date: Sep 2006
Location: USA
Device: iPad Mini 2, iPhone 5, Nexus 7.2
I'm not sure where tomsem got his assumptions, but the contrast settings do help out with scanned black and white documents that were converted to PDFs.

Here is a complete set of five screenshots showing a scanned image PDF as viewed in all five contrast settings: Lightest, Lighter, Default, Darker, Darkest.

...
Attached Thumbnails
Click image for larger version

Name:	1-pdf-lightest-contrast.gif
Views:	664
Size:	33.7 KB
ID:	57280   Click image for larger version

Name:	2-pdf-lighter-contrast.gif
Views:	471
Size:	35.2 KB
ID:	57281   Click image for larger version

Name:	3-pdf-default-contrast.gif
Views:	433
Size:	36.5 KB
ID:	57282   Click image for larger version

Name:	4-pdf-darker-contrast.gif
Views:	411
Size:	35.5 KB
ID:	57283   Click image for larger version

Name:	5-pdf-darkest-contrast.gif
Views:	534
Size:	34.1 KB
ID:	57284  
jswinden is offline   Reply With Quote