aspose.words.layout.PageLayoutCallbackArgs class. An argument passed into [IPageLayoutCallback.notify()](../iPagelayoutcallback/notify/#Pagelayoutcallbackargs) To learn more, visit the [Converting to Fixed-Page Format](https://docs.aspose.com/words/python-net/converting-to-fixed-Page-format/) documentation article....visit the Converting to Fixed-page Format documentation article...Gets event. page_index Gets 0-based index of the page in the document...