## Classes

| Class | Description |
| --- | --- |
| [BeforePageSavingEventHandler](./beforepagesavingeventhandler/) | The base class for before-page-saving event handlers. |
| [BeforeSavingEventArgs<T>](./beforesavingeventargs-1/) | Defines the base class for arguments of various before-saving events. |
| [PageAPI](./pageapi/) | The **Page** element modification API. |
## Interfaces

| Interface | Description |
| --- | --- |
| [IBeforeSavingEventHandler<T>](./ibeforesavingeventhandler-1/) | Defines the common before-saving event handler interface. |
| [IModificationAPI](./imodificationapi/) | The basic interface for any XPS element's modification API. |