Office Settings & Configuration

How to Highlight Text in a Straight Line in PowerPoint

Maira Mehtab Sep 22, 2026 872 views

Question details

The user needs a method to highlight text in a perfectly straight line in Microsoft PowerPoint without relying entirely on the free-hand drawing tool.

Product: Microsoft PowerPoint
Device & OS: not provided
Scenario: Annotating slides and emphasizing specific text with straight, clean highlight marks during presentation editing.
Observed behavior: PowerPoint does not currently provide a dedicated keyboard shortcut to force the native highlighter tool to draw in a perfectly straight line.

Before you start

Ensure you have your PowerPoint presentation open to the slide where you want to add the highlight annotations.

Solution 1Recommended

Use the Line Shape Workaround

Use the Line shape tool combined with the Shift key to create a perfectly straight line that mimics a highlight effect.

Since the native highlighter tool does not snap to a straight line when holding a modifier key, using a customized line shape is the most reliable workaround.

Insert a Line Shape

Navigate to the 'Insert' tab on the ribbon, click on 'Shapes', and select the 'Line' tool from the drop-down menu.

Draw the Line

Hold down the 'Shift' key on your keyboard and drag your mouse across the text. The Shift key ensures the line remains perfectly horizontal or vertical.

Customize the Line

Select the newly drawn line, go to the 'Shape Format' tab, and adjust the 'Shape Outline'. Increase the line weight (thickness) and change the color to yellow or another bright color to resemble a highlighter marker.

Transparency Tip: To make the text underneath visible, you can right-click the line, choose 'Format Shape', and increase the transparency of the line color.

Solution 2

Use the Digital Ruler Tool

Utilize PowerPoint's built-in digital ruler to physically guide your highlighter tool in a straight path.

Solution 3

Submit a Feature Request

Since this is a known limitation, providing feedback to Microsoft can help prioritize adding a dedicated shortcut in future updates.

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Frequently Asked Questions

Can I hold Shift to highlight in a straight line using PowerPoint's draw tool?

No, currently holding the Shift key while using the native highlighter under the Draw tab does not snap the ink to a straight line. You must use the digital Ruler tool or draw a line shape as a workaround.

How do I rotate the digital ruler in PowerPoint?

Once the ruler is active from the Draw tab, hover your mouse over it and use the scroll wheel to rotate it one degree at a time. If you have a touchscreen, you can use a two-finger twist gesture to rotate it to the desired angle.

Will Microsoft add a straight-line highlight shortcut in the future?

Microsoft frequently updates Office based on user feedback. Users are encouraged to submit a feature request via the Help > Feedback menu in PowerPoint to request a dedicated Shift/Alt shortcut for the highlighter tool.

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