Bookmark Open Property. Whether the bookmark appears open or closed. ABCpdf .NET PDF Library. From ABCpdf .net previous page next page Open Property Type Default Value Read Only Description [C#] bool [Visual Basic] Boolean true No Whether the bookmark appears open or closed. Notes This property determines if the bookmark appears open or closed. When a bookmark is open all its children are visible in a tree below it. When it is closed its children are hidden. Clients can toggle the state of the bookmark by clicking on it. This property determines the default state. Example None. previous page start next page
