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By
Rick Broida, PC World

Create a 'Yellow Highlighter' Effect in Your Screenshots
Have you ever wondered how I'm able to create that "yellow highlighter" effect in screenshots, like the one in a recent Hassle-Free blog post? Really, you have? Wow, you need to get out more.
Actually, it's pretty handy little effect, great for calling out key areas of a business document or even certain photos. To apply it, all you need is one of my all-time favorite tools: IrfanView.
This freeware image editor offers quick-and-easy cropping, resizing, rotating, and special effects. It can open just about any image format known to humankind and save to just about any other format.
Plus, it's a tiny program that loads in an instant and consumes very little RAM. And did I mention that it's free? Here's how to create the highlighter effect:
Open the image you want to modify.
Draw a box around the area you want to highlight. (It needs to have a white background if the effect is to work properly.) If necessary, resize the box by dragging any of its four sides.
Select Image, Color corrections (or press Shift-G).
In the Color balance section, click the B slider and drag it all the way to the left.
Presto! Everything in your box should turn a bright, highlighter yellow. Now just save the image (giving it a different name if you want to preserve the original) and you're done.
Make Paper Documents Digital Without a