PDF Reader Pro supports adding shape annotations, such as ovals, rectangles, arrows, lines, etc. You can directly change the color of these shape annotations, including fill color, line color, and more. Specific steps are as follows:
1. Open a PDF File;
2. Click Annotate -> Add Ovals / Rectangles / Arrows / Lines;
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3. Tap Properties at the right top and the Properties Panel will expand. There you can customize the shapes' color like Line Color, Fill Color, Opacity, and more.

Download and try PDF Reader Pro now to experience rich annotation tools!
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