PDF Editing Issues

Fix Acrobat Text Highlighter Selecting the Wrong Line

Bushra Parveen Oct 22, 2026 868 views

Question details

The user is trying to highlight text in Adobe Acrobat Pro DC, but the highlighter tool incorrectly selects an existing nearby highlight instead of the text line directly below it.

How to Fix Acrobat Text Highlighter Selecting the Wrong Line

Product: Adobe Acrobat Pro DC
Device & OS: not provided
Scenario: Highlighting multiple lines of text or text located closely below an already highlighted section in a PDF document.
Observed behavior: The highlighter tool snaps to or selects the existing highlight rather than applying a new highlight to the intended text line.

Before you start

Ensure you have saved your current progress and try opening the PDF in a different viewer, such as a web browser, to check if the selection issue is document-specific or an application glitch.

Solution 1Recommended

Update and Repair Adobe Acrobat Installation

Software bugs that cause the highlighter tool to snap incorrectly are often resolved by repairing the installation or applying the latest patches.

Adobe frequently releases updates to fix known bugs, including text selection anomalies in Acrobat Pro DC. Repairing the installation can also restore missing or corrupted core files that manage the Comment tools.

Check for Updates

Open Adobe Acrobat Pro DC, navigate to the 'Help' tab in the top menu bar, and click on 'Check for Updates'. Follow the prompts to install any available patches.

Repair the Installation

Still under the 'Help' menu, click on 'Repair Installation'. Wait for the repair process to complete and restart the application.

Test the Highlighter

Open your PDF file again, select the Highlighter tool from the Comment toolbar, and attempt to highlight the text below the existing highlight.

Update and Repair Adobe Acrobat Installation

Tip: Restarting your computer after a repair process ensures that all background Adobe services are properly refreshed.

Solution 2

Use Keyboard Selection and Comment Tools

Bypassing the standard drag-to-highlight method by using keyboard selection provides precise control over what text is highlighted.

Solution 3

Disable Conflicting Third-Party Extensions

Third-party plugins installed in Acrobat can sometimes interfere with native annotation and selection tools.

Seamless PDF Editing

Highlight PDF Text Seamlessly with WPS Office

Avoid frustrating highlighting glitches by using WPS PDF. It offers precise text selection, intuitive annotation tools, and smooth performance for all your document reading and editing needs.

1. Open Your PDF: Launch WPS Office and open your PDF document using the built-in WPS PDF tool.
2. Access the Comment Tools: Navigate to the 'Comment' tab located on the top menu ribbon.
3. Select the Highlighter: Click the 'Highlight' icon and drag your cursor smoothly over the specific text you wish to mark.
4. Save Your Annotations: Click the 'Save' icon or press Ctrl+S to preserve your precisely highlighted document.

Accurate text selection and highlighting without snapping errorsFully compatible with all standard PDF files and Microsoft Office formatsLightweight application with exceptionally fast loading timesComprehensive suite of free annotation, comment, and markup tools

microsoft office alternative - wps office

Frequently Asked Questions

Why does my PDF highlighter select large blocks of text at once?

This often occurs in scanned PDFs or poorly formatted documents where the invisible text layer is misaligned or grouped incorrectly. Running OCR (Optical Character Recognition) on the document can regenerate a properly aligned text layer.

How do I change the default highlight color in Acrobat?

Right-click an existing highlight in your document, select 'Properties', and choose your preferred color under the Appearance tab. Check the 'Make Properties Default' box before clicking OK to apply this color to future highlights.

Can I remove an existing highlight without deleting the text?

Yes. Right-click the highlighted text or the highlight itself, and select 'Delete' from the context menu. This removes the color markup while leaving the underlying text perfectly intact.

Why is the highlight tool completely disabled in my PDF?

The document might be secured with restricted permissions that prevent commenting and annotation, or it may be a flattened image-based PDF. You will need the owner's permission password to unlock editing features or use OCR to recognize the text.

PDF Troubleshooting