How to Tag a Caption with a Label

[alice_2020]

Hello!

I'm tagging  a document to make it accessible, and it contains a figure with a caption that both labels the figure and contains standalone text. For example,

"Figure 2. This is the caption of the above figure."

The PDF assocation Tagged PDF Best Practice Guide: Syntax states:

"In tagged PDF, <LBL> elements are not limited to lists, and are always explicitly contained.  <Lbl> structure elements may be used whenever content serves as a label for some other content, for example, “Fig: 123” in a caption for a <Figure>."

This and other guidance make me think that tagging such a caption as stated (a caption parent tag for the whole caption with a label child tag for the labelling text such as "Figure 2") would be best practice. However, I can't find guidance on how to correctly create such a tag structure in Acrobat Pro DC, or what the corresponding container structure as viewed in the content panel should look like. 

Another accessibility requirement is that the caption for a figure element must follow the figure tag, rather than be a child of the figure tag. (This is because the figure alt text will override the caption text, making the text of the caption inaccessible to a screen reader.)

I'm pretty sure most of my attempts so far have been incorrect, as the accessibility checker throws a list error for every configuration I've tried.

How can you correctly create a caption tag with a child label tag in Acrobat Pro?

[S. S]

Hi @alice_2020,

Hope you are doing well. Thanks for writing in!

If you are still looking for a solution, you can try the steps mentioned here:

1. Ensure the Figure is Properly Tagged

1. Open the Tags panel (View → Show/Hide → Navigation Panels → Tags).
2. Locate the Figure tag (<Figure>).
3. Right-click the Figure tag and select Properties.
4. In the Alternative Text field, enter a short image description.

2. Add a Caption Tag After the Figure

1. Right-click the Figure tag and select New Tag.
2. Set the type to <Caption>.
3. Ensure the <Caption> tag appears AFTER the <Figure> tag (not inside it).

3. Add a Label Inside the Caption

1. Right-click the <Caption> tag and select New Tag.
2. Set the tag type to <Label>.
3. Right-click the <Label> tag, select Create New Text, and type the label (e.g., "Figure 2:").
4. Drag this Label tag inside the Caption tag.

4. Add Caption Text

1. Right-click the <Caption> tag and select New Tag.
2. Set the tag type to <P>.
3. Move the actual caption text inside the <P> tag.

Hope this helps.

-Souvik