I have a fileI tagged it. And able to read it. But When I press reflow in adobe(View-> Zoom-> Reflow (ctrl+F4)) it's not showing correctly. Some text is missing or graphics messing up.
But I changed one image bbox using "Axes pdf quick fix". After that automatically all page reflow is working. Here the files it is.
What am I missing while tagging. Why it is able to reflow properly after single bbox update in "Axes Pdf".
I want to know the reason why it's not working. And need to fix it. Help me on this.
Tagging a PDF file is about adding metadata so that assistive technology, such as a screen reader, can accurately read the contents of the file.
The Reflow (Ctr+4) option modifies (temporarily) the document so that you can zoomin/magnify and the text reflows to fit the width of your viewport. See https://helpx.adobe.com/acrobat/using/reading-pdfs-reflow-accessibility-features.html#reflow_a_pdf
The two features, tagged PDF and reflow, should not be related, but the Adobe site interestingly says:
Which I assume means if the document already has tags, then they aren't modified, which could be in invalid assumption.
I compared both documents in the OP, the original one that does not reflow properly and the one modified by axes4 that does reflow, the latter of which allows the subtraction examples to display such as:
Saying the original does not reflow properly isn't quite accurate. It actually does reflow the text to fit within the viewing width. It's just the subtraction example, which is a <Figure> in the tag, does not display.
I tried looking at the properties of the <Figure> tag to see what was different but could not find anything obvious that would allow it to display in the modified file. I looked specifically at the bbox attribute in the "Edit Attribute Objects..." dialog and the bbox is different between the two files but I don't see how that affects the reflow.
Side note: The alt text for the first figure says:
The "3816" isn't quite right because it has an extra '8' in it. In fact, the '3' and the '16' should be separated by a space because they're two numbers and not '316'. The alt text doesn't really convey what's in the figure because you don't get a sense that the '16' is because you borrowed a 10 from the column to the left and that the '4' in '88846' was changed to a '3' because you took 10 from it.
I'm also not sure what "hline 8" means. Perhaps "horizontal line"?
Anyway, this is a lot of information for not answering the question but since I spent time researching it, I at least wanted to post what I had found.