HtmlSaveOptions.document_split_criteria property. Specifies how the document should be split when saving to [SaveFormat.HTML](../../../aspose.words/saveformat/#HTML), [SaveFormat.EPUB](../../../aspose.words/saveformat/#EPUB) or [SaveFormat.AZW3](../../../aspose.words/saveformat/#AZW3) format...HEADING_PARAGRAPH for EPUB and AZW3. @property...the document into heading paragraphs. # This is useful for readers...