BUG: Edit PDF (text editing) Breaks Tag Structure
When using the Edit PDF Tool to change minor character styles (color, weight, underscore, etc.), the Tag structure and read order for the page the edit is applied are broken.
For example: change the color of a header (H1) line of text. Return to the Tags Panel and all current page content has been consolidated into one <p> Tag. All the original Tags associated with this page are empty and placed randomly through the Tag Structure. Depending on page content, you may be unable to break apart the new tag single into the individual Tags necessary for compliance, especially email, URL, or footnote links as such links may or may not retain elements for compliance once recreated.
To recreate, build a simple Word Document with header, paragraphs, and add a hyperlink or two to a paragraph. Export to PDF, remediate as necessary. Edit any text on page (color, face, etc.). Review Tag Panel for results.
Ideally, we would make such edits in source file; however, tools are available in Acrobat PRO. I would expect that one tool would not negatively affect another within the same app.
Additionally, Edit Tool affects text placement. Changing the color of a center-aligned text frame font may force random attribution changes such left alignment or line breaking of that text. This also affects Tag structure explained above.
Bevi Chagnon | PubCom.com commented
The broken tag tree happens whenever ANY editorial change is made the actual content, even swapping a period for a comma.
And the broken tags can happen anywhere in the document, not just on the page where the editorial change was made.
This is a serious bug; please fix it!
There is not workaround.