I deleted and re-typed the text directly in Acrobat.
By @Mikiko34403636vnga
Uh-oh. I have some bad news.
Once a PDF has been tagged for accessibility, the content can't be edited in any way. Doing so breaks the tag tree and the little yellow container boxes that are inside the tags lose their content. It just vanishes and leaves empty containers, or merges tags together, or does other strange things to the content.
So one of the first laws of accessible PDFs is: Don't Edit The Content! Includes:
- Changing the text content, such as correcting a typo, deleting text, or adding new text. Not even a tiny change like swapping a comma for a period.
- Inserting new graphics.
- Changing the colors of text.
- Changing the fonts that text uses.
- Changing the font size, line spacing, or any other text formatting
All changes to the content must be done in the original source file and a new PDF re-exported.
Sometimes the file can be remediated with Acrobat's AutoTag utility, but we often find that this doesn't work because the missing content can't be recovered and retagged.
Check the tag tree again, especially on the page where the edits were made. Expand the <Tags> so that you can see the individual yellow content containers. You should see the paragraph text. If the containers are empty, the edits caused them to disappear. (The content is still visible on the page, but not in the tag tree.)