Working on a Mac Desktop OS Sierra, want to use Preview to markup a pdf, but need the filled rectangle to be translucent, not opaque. I only see fill, and no fill options on the menu.

Is this possible to achieve and what steps might work?

1 Answer 1


After creating your rectangle you can choose the color picker, then Show Colors. That gives you an opacity slider.

Here you can see I've given it a purple tint.

enter image description here


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