Monday, April 21, 2014

A small bug in Preview enables to underline/highlight with any color

I found a small bug in Mac OS X Mavericks Preview (version 7.0 (826.4)) yesterday, that enables to underline/highlight with any color. It's not so straightforward, but at least if you really really want to use more colors, you can.
I rewrite it here:
  1. Write any text, or draw a line or any other figure with color 1.
  2. Change its color to color 2.
  3. Select the highlight or underline tool.
  4. Do cmd-z. This should change the text/figure color back to color 1. (If it is not the case, make sure the text you have written is not selected.)
  5. You now have the underline/highlight tool selected with the color box accessible. Select your color (even if already selected), then highlight/underline.
Another way:
  1. Suppose you want to underline in blue. Highlight something in blue.
  2. Right-click on what you just highlighted, and make it underlined instead.
  3. Select the underline tool.
  4. Do cmd-z twice. This will remove the underline you just did.
  5. Underline what you want: it will be underlined in blue! :)
Steps 2 and 3 are actually interchangeable.
This was my Preview bug finding day :) Enjoy!


  1. Is there a way to change the colour of the font too? I've just upgraded to Maverick and the colour option for fonts is nowhere to be seen.

  2. Step 2 worked for me but I'm really trying to change the underline color to black. I can't get the first step to work, thoughts?