PDF Editing Issues

How to Fix Shared PDF Annotations Appearing in Black and White

Emma Brown Oct 19, 2026 869 views

Question details

The user needs to ensure that colored highlights and annotations in a PDF retain their original colors when shared, rather than appearing in black and white to recipients.

How to Fix Shared PDF Annotations Appearing in Black and White

Product: Adobe Acrobat and PDF Viewers
Device & OS: not provided
Scenario: Sharing, printing, or exporting a PDF document containing colored highlights and annotations.
Observed behavior: The colored annotations unexpectedly appear black and white to the recipient due to grayscale settings, unsupported PDF viewers, or incorrect export methods.

Before you start

Ensure you have the latest version of your PDF viewer installed and verify that the original document displays the colored annotations correctly on your own screen before sharing.

Solution 1Recommended

Flatten Annotations to Preserve Color as Page Content

Flattening embeds the annotations directly into the document background, preventing different PDF viewers or email clients from altering their appearance.

Interactive PDF annotations act as an overlying layer on the document. By flattening the PDF, you merge this layer with the actual page content. This ensures that highlights and colored text will render perfectly regardless of the software your recipient uses.

Open your annotated PDF

Launch your PDF editor (such as Adobe Acrobat) and open the document containing the colored annotations.

Access the Print menu

Navigate to 'File' in the top menu bar and select 'Print'.

Select a PDF printer

Change your printer destination to 'Adobe PDF', 'Microsoft Print to PDF', or an equivalent virtual PDF printer.

Print to flatten

Click the 'Print' button and choose a location to save the newly flattened PDF file.

Flatten Annotations to Preserve Color as Page Content

Flattening Restrictions: Once flattened, annotations cannot be edited, moved, or deleted by the recipient. Save a copy of the original interactive file if you need to make changes later.

Solution 2

Disable Grayscale Print and Export Settings

Check your application's print or export configuration to ensure black-and-white or grayscale modes are completely disabled.

Solution 3

Ensure Recipients Use a Fully Supported PDF Viewer

Sometimes the recipient's default viewer fails to render colored annotation layers properly.

Comprehensive PDF Solution

Easily Preserve and Share Colored PDF Annotations with WPS Office

WPS Office provides robust PDF editing tools that allow you to easily add colored annotations, highlights, and comments. You can quickly flatten PDFs or export them with true colors to ensure recipients see exactly what you designed.

1. Open your PDF: Launch WPS Office and open the PDF containing your colored annotations.
2. Access the Print menu: Click on the 'Menu' button in the top-left corner and select 'Print'.
3. Select WPS PDF: Choose 'WPS PDF' as your virtual printer from the drop-down list.
4. Verify color settings: Ensure that the 'Print in grayscale' option is unchecked so colors are retained.
5. Print to flatten: Click 'Print' to save a new, flattened PDF file with permanently embedded colors.

Fully compatible with Adobe Acrobat PDF formats, comments, and annotations.Built-in PDF flattening tools to permanently embed colored notes.Lightweight software with an intuitive, user-friendly interface.Supports converting PDFs to Word, Excel, and images with high formatting fidelity.

microsoft office alternative - wps office

Frequently Asked Questions

Why do my yellow PDF highlights turn grey when I email the document?

This usually happens if your email client's built-in document previewer does not fully support layered annotations, or if the document was accidentally exported using grayscale settings before attaching. Advise the recipient to download the file and open it in a dedicated PDF reader.

Can I change the color of existing annotations in a PDF?

Yes, as long as the PDF has not been flattened. Right-click the existing highlight or annotation, select 'Properties' or 'Format', and choose a new color from the provided palette.

How do I know if my PDF annotations are flattened?

If you try to click, select, or move an annotation or highlight and cannot select it independently of the page text, the document has been flattened. The annotations have become a permanent, uneditable part of the page background.

PDF Troubleshooting