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coleh77352081
Participant
July 7, 2020
Answered

508 Compliant Table (Tab Order Error)

  • July 7, 2020
  • 2 replies
  • 1930 views

I'm working on a graphic that has a table (in InDesign 2020) and needs to be 508 compliant. I've been stuck and confused on how to fix the table's reading order. I have the cell and table styles already made for the table, but there always seems to be a tab order error after the accessiblity check in Acrobat. I've been instructed to only fix the reading order in InDesign, not through the Table Editor in Acrobat. I've been told the headers would fix the issue, but I'm not sure if it means the paragraph or table headers. Would adding table styles to the table delineate what the headers are? After browsing through other forums, support, and videos, I can't seem to find the right answer. I've added a screenshot of what the whole table looks like (with censored info).

 

What would be the most effecient sequence to make an orderly, readable table in design through styles?

This topic has been closed for replies.
Correct answer Bevi Chagnon - PubCom.com

First, accessible tables are not affected by your use of table/cell styles. Those only control the visual formatting of the table, not its tags once exported to PDF.

 

A table's accessibility is based on its structure: that is, the matrix of rows and columns.

  1. A table must have column headers (see #1 in the screen capture).
    In InDesign, add a new row at the top and designate it to be the repeating column header for the table. Each cell in this row should end up with a <TH> tag in the PDF.
  2. You have row headers that span 2 or more rows, making this an irregular table (see #2). Example (apples and pears are row headers:
    Apples     Delicious
                     Granny Smith
                     Macintosh
    Pears       Bartlett
                     Bosch
    This can't be made fully accessible in InDesign and will have to be hand tweaked in Acrobat Pro, adding column spans, scopes, and IDs.
 

2 replies

C
coleh77352081Author
Participant
July 7, 2020

Thank you so much for the response! I do have a couple questions/concerns.

 

The table is already made up of 35 header rows. I can't add another row due to an error say it can't go over 25. Was this because it was placed from an excel file, or is there another way of adding another row?

 

And for the scope of the rows connected to one header, should each of them be within the row scope? How could I know if they're together with that header?

 

thank you again for your time and advice.

Frans v.d. Geest
Community Expert
Frans v.d. GeestCommunity Expert
Community Expert
July 7, 2020

One table with 35 header rows?? That can't be right of course. I have a feeling you did not fully understand Bevi...

And, if there are headers on the side, they need to be defined as TH (with scope Rows) as well. You have to define this in Acrobat Pro as InDesign can not. Same with setting the scope of a header to row, column or both as well as the number. For more complicated tables you have to define which TD (table Data cells) belong to which headers (use the TH id's for this). You have to use the Reading order tool in Accessibility tools to use the Acrobat Table editor.

If you have no training in Accessible PDF and Acrobat I would advice you to find someone that can do this remediation (at least for tables) for you...

    Bevi Chagnon - PubCom.com
    Bevi Chagnon - PubCom.comCorrect answer
    Legend
    July 7, 2020

    First, accessible tables are not affected by your use of table/cell styles. Those only control the visual formatting of the table, not its tags once exported to PDF.

     

    A table's accessibility is based on its structure: that is, the matrix of rows and columns.

    1. A table must have column headers (see #1 in the screen capture).
      In InDesign, add a new row at the top and designate it to be the repeating column header for the table. Each cell in this row should end up with a <TH> tag in the PDF.
    2. You have row headers that span 2 or more rows, making this an irregular table (see #2). Example (apples and pears are row headers:
      Apples     Delicious
                       Granny Smith
                       Macintosh
      Pears       Bartlett
                       Bosch
      This can't be made fully accessible in InDesign and will have to be hand tweaked in Acrobat Pro, adding column spans, scopes, and IDs.
     
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