* About '''PDF format'''
** [[PDF Boxes]]: the size of PDF pages can have different meanings – e.g. the visible page, the printed page, the cropped printed page. ConTeXt can define the set of boxes defined by the PDF standard.
** ConTeXt can create [[PDF/A]] and [[PDFX|PDF/X]] (the ISO standard) compliant outputs
* '''[[Visual Debugging]]''',shows the nasty details of your code: to understand and tweak ConTeXt typesetting.