Each commented range will print, and convert to PDF, with visible highlight color, if that helps.

This applies to Word for Windows, at least.

The attached screen shot illustrates what comments, and their "anchors," look like in the print preview (File > Print).

Attached Images

CommentHighlightAppearancePrintPreview.png (32.5 KB, 11 views)

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Stefan Blom
Microsoft Word MVP

Microsoft 365 apps for business
Windows 11 Professional