Use black and white image for printing, color image for viewing
34953
Typeset two styles of the same text over top each other
117842
Letting pictures appear in a presentation
131789
iPhone - How do you color an image?
1824
I need to print an image at a certain size. What dimensions and resolution should I use?
32531
Obtaining print quality PDF or PNG output from QGIS?
6519
ADDING white background to an image?
29107
Will increasing the dpi of my image (without re-sampling) hurt print quality?
103313
convert images to pdf
34509
Free vector graphic images, for commercial use
145293
Making an image with a transparent background
130406
How to convert a photo to a black and white image by ImageMagick?
72807
Converting a word document to an image
57529
What is the easiest way to have a better quality image from a given image
94633
Print  only?
56028
styles and print and output
119902
Create a multicolor background
146958
Detecting colors for an Image using PHP