Highlight
Highlight marks text the way a marker would. When you save, it becomes a real PDF annotation you can toggle, delete, or flatten later.
How to do it
- Choose Highlight, from the toolbar or the Annotate tools.
- Drag across the text you want to mark.
- Pick a color or opacity if you want something other than the default yellow.
- To remove one, double-click a highlight you've added.
Or skip the tool: with the Select tool, select text the normal way, then right-click and choose Highlight (or Underline / Strike through). Right-click a highlight to Remove it.
What to know
- Highlights follow the text you select. They hug the words across every line the way selecting text does — a partial first and last line, full lines in between — instead of a rectangular block.
- Highlights are held until you Save, then saved as PDF annotations.
- Print markup controls printing. Leave Print markup on to include saved highlights when printing, or turn it off before saving new highlights.
- Flatten markup makes it permanent. Use Flatten markup when you want the highlight baked into the page.
- Prepare for Filing asks first. If saved RaioPDF markup is present, filing offers to flatten it or keep it live before continuing.
- It needs real text to grab onto. On a scanned page, run Make Searchable first so there's text to highlight.
- Reorganizing pages clears unsaved highlights. If you rotate, delete, or reorder pages before saving, highlights you haven't saved are cleared — save first.