LF PinPoints is a simple drag and drop image mapping plugin with a caption functionality.

LibraFire

LibraFire PinPoints plugin is a great tool for image mapping functionality with a really easy to use drag and drop ability.
1) You can set default settings for future plugin use. 
2) You can add unlimited number of markers on image per post. 
3) You can choose the size, color, background caption color, font size, opacity of the caption text (dot). 
4) You can choose on which post type the PinPoints control will show up.

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