• After the automatic Document Analysis took place a document page will
  be “split up in different areas of interest” (= block)

A block may be of one of the following types:

• Text block
  Corresponds to an image zone recognized as formatted text. The text block should only contain single-column text.

• Table block
  Corresponds to an image zone recognized as table. It could be a real table or an areas of text that are structured as a table. When the application reads this type of area, it draws vertical and horizontal separators inside the area to form a table. This area is the rendered as a table in the output text. A table's region may only be rectangular.

• Picture block
  Corresponds to an image zone treated as a picture. This type of block may enclose an actual picture or any other object that should be displayed as a picture (e.g. a section of text).

• Barcode block
  Corresponds to an image zone recognized as barcode.

• Checkmark block
  Corresponds to an image zone recognized as checkmark.

• Block for auto analysis
  Is an area of an image that application should analyse automatically. The application performs the layout analysis procedure that replaces blocks of this type with one or more blocks of some other specific type (text, picture, table, or barcode).