About text markup tools

By Cynthia, 6 December, 2025

You can use Text Markup tools to indicate where text should be edited or noticed. Text Markups fall within the comments category and can be made visible/invisible by clicking Comment > Manage Comments > Comments > Show All/ Hide All. They do not change the actual text in the PDF. Instead, they indicate which text should be deleted, inserted, highlighted or underlined. Text Markup tools include Highlight, Squiggly, Underline, Strikeout, Replace, and Insert.

Text Markup Tools

Button

Tool Name

Description

Highlight

To mark important passages of text with a fluorescent (usually) marker as a means of memory retention or for later reference.

Squiggly Underline

To draw a squiggly line under. Similar to the Underline command.

Underline 

To draw a line under to indicate emphasis.

Strikeout

To draw a line to cross out text, making others know the text is deleted.

Replace Text 

To draw a line to cross out text and provide a substitute for it.

 

Insert Text 

A proofreading symbol (^) used to indicate where something is to be inserted in a line.

Tip: You can use the Area Highlight command in the Comment tab to mark any area in the document with a highlight color. To do this, with the command selected, click and drag across a region in the document as needed. For details on how to change the appearance of markups added with the Area Highlight command or remove the markups, please refer to the related instructions on text markup comments.   

HTML User Manual Product
Foxit PDF Editor for Windows