A blue dotted outline will appear around the highlight when selected. Navigate to the Properties (Alt+P) panel. Under Appearance, you can edit the color and opacity of the highlight to make the content underneath more visible. To save these properties, select Set as Default under Options....
8. Compare PDF drawings automatically and highlight the differences9. Measure area, length, volume, perimeter or count from a PDF drawing10. Spell check11. Reduce PDF file size and control resolution, color, embedded fonts and file data12. Integrates with SharePoint and Projectwise directly from...