Adobe Acrobat Professional is the software used to create PDF files, which are commonly used to publish and distribute information in digital form.
Adobe maintains detailed descriptions and step-by-step tutorials for creating accessible PDFs and for checking the accessibility of existing PDFs, which are linked below. Note that Adobe Professional is paid software.
Create and verify PDF accessibility (Acrobat Pro)
This link was last checked in November 2023, but is regularly updated by Adobe.