PDF/A-1a is a form of PDF where the text is embedded in structured way. It is a 'tagged PDF'. This is meant to make PDF files accessible. It makes it possible t

PDF/A-1a is a form of PDF where the text is embedded in structured way. It is a 'tagged PDF'. This is meant to make PDF files accessible. It makes it possible to extract the text well. Some governments, e.g. Dutch government, mandate that PDFs be tagged PDFs.