What it does
This command "flattens" all FormXObjects except those with transparency.
FormXObjects are objects which can appear several times in your document but exist physically only once. Therefore it can happen that you can not select all of these objects.
Use it for
Preparing your document for proper tagging if it contains FormXObjects and you only want to tag some of the FormXObjects.
How to use it
- Click in the tab "Content" on the button "Flatten FormXobjects".
- Done!
Related accessibility issue
Not tagged FormXObjects can cause that contents are not accessible.