No authoring software yet with full support for PDF/UA
Although the ISO-standard PDF/UA-1 (ISO 14289-1) with its clearly-defined requirements (elaborated in the so called Matterhorn Protocoll), there are no mainstream programs around which support the creation of fully PDF/UA compliant documents.
Document authors evaluating their accessible PDF documents - for example with the PDF Accessibility Checker (PAC) - are often faced with hard to correct errors because the authoring tools or the conversion tools are not good enough. We call such evaluation failures "last mile" errors. You have to go the last mile - that is often very stressful - because you have to fix the errors manually at PDF content level - a kind of PDF source code for most of the users.
A typical last mile error is for example: Path object not tagged.
axesPDF as short cut
The checking & remediation tool axesPDF helps accessible document authors reaching fully PDF/UA compliant documents with ease. You can use it at the end of your InDesign, Acrobat or Word workflow.
Usually you start with the PDF/UA check. Maybe you know it already from the PDF Accessibility Checker (PAC). Then you look at the errors, choose the corresponding commands and fix them - in most cases only with one click.
Have a look at all the accessibility issues which you can solve with axesPDF.