PDF Editing Issues

How to Fix PDF Highlights Not Saving or Appearing in Adobe Acrobat

Kushani Nimanthika Oct 19, 2026 869 views

Question details

Users are experiencing an issue where highlighted text in a PDF document disappears or fails to save after closing and reopening the file.

How to Fix PDF Highlights Not Saving or Appearing in Adobe Acrobat

Product: Adobe Acrobat
Device & OS: not provided
Scenario: Adding highlight annotations to text within a PDF and saving the document for future review.
Observed behavior: Highlights applied to the PDF text do not appear or are lost entirely when the document is closed and reopened in the application.

Before you start

Ensure you have the necessary permissions to edit the PDF file, and double-check that you are actively saving your changes rather than relying strictly on auto-save features.

Solution 1Recommended

Verify Document Restrictions and Application Updates

The most common reasons for disappearing highlights are document security restrictions or outdated software versions that fail to process annotations correctly.

PDF creators can lock files to prevent editing and commenting. If a file is restricted, your highlights may appear temporarily but will not save. Additionally, older versions of Acrobat may have bugs related to annotation saving.

Check PDF security settings

Go to 'File' > 'Properties' > 'Security' and verify that 'Commenting' and 'Document Assembly' are set to Allowed.

Update Adobe Acrobat

Navigate to the 'Help' menu and click 'Check for Updates'. Install the latest available version and restart the application.

Save changes manually

After adding a highlight, explicitly press 'Ctrl + S' (Windows) or 'Cmd + S' (Mac) to save the document before closing the window.

Test alternative PDF files

Open a different, unrestricted PDF file, apply a highlight, and save it. If it saves correctly, the issue is specific to the original file.

Verify Document Restrictions and Application Updates

File-specific corruption: If only one specific file is affected, try using 'Print to PDF' to create a fresh, flattened copy of the document, then attempt to highlight the new file.

Solution 2

Repair the Adobe Acrobat Installation

If the software is up-to-date and the PDF is not restricted, the application installation itself may be corrupted.

Reliable PDF Annotations

Use WPS PDF to Reliably Highlight and Save Documents

If your current PDF reader continues to drop your annotations, WPS Office provides a robust, built-in PDF editor. You can effortlessly highlight text, add comments, and save your documents without worrying about losing your work.

1. Open WPS Office: Launch WPS Office and click on 'PDF' from the main dashboard to open the PDF module.
2. Load your document: Click 'Open' and select the PDF file you wish to review and highlight.
3. Select the Highlight tool: Navigate to the 'Comment' tab on the top ribbon and select the 'Highlight' tool.
4. Apply highlights: Drag your cursor over the desired text to apply the highlight color.
5. Save your work: Click the 'Save' icon in the top-left corner or press Ctrl+S to securely save your annotations.

Free and lightweight PDF editing tools built directly into the office suiteFlawless compatibility with standard PDF formats from Adobe and MicrosoftReliable and fast saving of annotations, comments, and highlightsAvailable across Windows, Mac, Linux, iOS, and Android

Frequently Asked Questions

Why won't my PDF let me select text to highlight?

If you cannot select the text, the PDF is likely a scanned image or lacks a readable text layer. You will need to use a PDF editor with OCR (Optical Character Recognition) capabilities to convert the image into selectable text before highlighting.

How do I change the highlight color in a PDF?

In most PDF editors, including WPS PDF and Acrobat, you can change the color by right-clicking the highlighted text and selecting 'Properties', or by choosing your preferred color from the Comment toolbar before dragging your cursor over the text.

How can I quickly remove a highlight I just made?

To remove a highlight, simply right-click the highlighted text and select 'Delete' or 'Remove'. Alternatively, you can click on the highlight and press the 'Delete' key on your keyboard.

PDF Troubleshooting