Toolbars are shortcut for functions found either in menu, or by right clicking on specific objects. Menu items can be either in enabled or disabled state. Some operations have no effect when a document is not open so they are disabled. Also some operations are not avaliable when specific objects from specific windows are not selected.
Toolbar - Main
Toolbar - Page
Toolbar - Selection Mode
Toolbar - Draw
Toolbar - Text
Toolbar - Dynamic
This toolbar contain dynamic items and its content is updated based on context, i.e. what are you doing now. It can contain field used to edit text in PDF operators or icons used to filter displayed operators in current stream. There are four modes available for filtering operators. First and default mode is to show all operators. The other three modes are to show only text, only font and only graphical operators. The filter settings are per stream, so you can set diffrnent filterig in different streams.
Toolbar - Treeview
When changing pdf file using Object tree, Selection or Stream tab we can add and remove objects using either keyboard or these two buttons.
Toolbar - Revision
When a document is changed it can be saved either as new copy, to old file or to new revision. The last option saves all changes made to the document. The history of changes is embedded in the document itself. We can choose which revision we want to have displayed. Only the last revision can be edited. Otherwise we have to save it before editing.