Accessibilité numérique

Question

Quelle est la différence entre les balises d'accessibilité et l'ordre ?

Souvik Sadhu · Accepted Answer

Hope you are doing well. Thanks for writing in!

Let's answer one by one.

These are invisible labels added to PDF content that describe the structure and meaning of the document. They're like HTML for a PDF.

Their purpose:

Info on how to add accessibility tags can be found here: https://adobe.ly/4ieQcgT

It determines the sequence in which content is read by screen readers and assistive technologies — independent of how it visually appears.

Their purpose:

Ensures that screen readers present content in the correct, logical flow.
Helps users who rely on assistive tech to follow the document structure and meaning.
Prevents confusion caused by text being read out of sequence (e.g., sidebar before the title).
Makes PDFs more usable for people with visual or cognitive disabilities.

More info around the Reading Order can be found here: https://adobe.ly/3RHbloO

I have tried to create a table which should give you an overview of their difference.

Feature	Accessibility Tags	Reading Order
What it defines	The semantic role of content (what it is)	The sequence in which content is read
Used by	Screen readers, accessibility checkers	Screen readers
Controls	Structure (e.g., headings, lists, tables)	Flow of reading
Location	Tags Panel	Order Panel
Independent?	Mostly yes, but tags should follow logical order	Must match tag flow for best results

Hope this helps.

Regards,
Souvik.

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