edit
Underline a PDF
Draw a line under parts of a page.
Runs in your browser
How it works
A line is drawn just below each area you mark. Underlining survives black and white printing and photocopying in a way colour highlighting does not, which makes it the better choice for anything destined for paper.
Related tools
Questions
- Why underline rather than highlight?
- Underlining reads clearly in black and white and after photocopying.
- Can I choose the colour?
- Red, black or blue.
- Does it change the text?
- No. A line is drawn over the page; the text is untouched.