Many types of annotations, including drawings (lines, arrows, freehand drawings), can have a text comment associated with them. GoodReader allows you to view those comments and edit
almost all of them.
Types of annotations that you can create and edit in GoodReader: popup ("sticky") notes with 7 different icons, text highlights, typewriter notes, text boxes with callouts, freehand
drawings, lines, arrows, rectangles, ovals, "cloudy" shapes, text underlines (including "squiggly" ones), text deletion marks (strikeouts), text insertion marks, text replacement marks. You can freely adjust the color of all of the
The other types of annotations that you can view in GoodReader: polygons and polylines, rubber stamps, file attachments. All annotations that can be viewed can also be
deleted. Also, polygons and polylines can be edited in a limited fashion (color, placement, size).
You can extract files from PDF file attachments.
Please note that PDF annotations
are bound to a particular page. Therefore you are not able to draw across pages, even if you're currently reading a PDF file in a double-page mode.