| CreateBitmapFromCustomStampTask.OnCustomStampCreatedCallback | Callback interface for when the bitmap of a custom rubber stamp is created. |
| FindTextTask.Callback | Callback interface invoked when a pattern is found in the document. |
| GenerateHighlightsTask.Callback | Callback interface invoked when search highlights are obtained. |
| GetTextInPageTask.Callback | Callback interface invoked when text in the current page is prepared. |
| LoadFontAsyncTask.Callback | A interface for listening finish event |
| PDFDocLoaderTask.onFinishListener | A interface for listening finish event |
| PopulateUserBookmarkListTask.Callback | Callback interface invoked when user bookmarks are populated. |
| CreateBitmapFromCustomStampTask | A class that asynchronously generates a bitmap from a certain custom rubber stamp. |
| FindTextTask | A class that asynchronously finds a pattern through the document |
| GenerateHighlightsTask | A class that asynchronously generates highlights for all instances of a specified text in the document |
| GeneratePagesTask | A class that asynchronously either creates a document with empty pages or inserts empty pages into an existing document |
| GetTextInPageTask | A class that asynchronously extracts the text of the current page |
| LoadFontAsyncTask | Async Task for loading fonts in system path. |
| PDFDocLoaderTask | |
| PopulateUserBookmarkListTask |