For those of you in the accessibility world who struggle with the “Only one H1 in a PDF document” theory, I feel your pain. If you are new to accessibility, then you have undoubtedly come across the two schools of thought on this topic. On one hand, we have those who will will draw the line and say “Only one allowed.” On the other hand you have those that say, “As long as you follow the Parent/Child structure, you can have any number of H1 tags as long as it makes sense to do so.
Where did it come from?
Coming from a web background, I can completely understand how some might come to the conclusion that you can only have one H1 tag in a PDF. Because, in fact, ...