DocumentSplitCriteria enumeration

Specifies how the document is split into parts when saving to Html, Epub or Azw3 format.

public enum DocumentSplitCriteria


None0The document is not split.
PageBreak1The document is split into parts at explicit page breaks. A page break can be specified by a PageBreak character, a section break specifying start of new section on a new page, or a paragraph that has its PageBreakBefore property set to true.
ColumnBreak2The document is split into parts at column breaks. A column break can be specified by a ColumnBreak character or a section break specifying start of new section in a new column.
SectionBreak4The document is split into parts at a section break of any type.
HeadingParagraph8The document is split into parts at a paragraph formatted using a heading style Heading 1, Heading 2 etc. Use together with DocumentSplitHeadingLevel to specify the heading levels (from 1 to the specified level) at which to split.


DocumentSplitCriteria is a set of flags which can be combined. For instance you can split the document at page breaks and heading paragraphs in the same export operation.

Different criteria can partially overlap. For instance, Heading 1 style is frequently given PageBreakBefore property so it falls under two criteria: PageBreak and HeadingParagraph. Some section breaks can cause page breaks and so on. In typical cases specifying only one flag is the most practical option.


Shows how to use a specific encoding when saving a document to .epub.

Document doc = new Document(MyDir + "Rendering.docx");

// Use a SaveOptions object to specify the encoding for a document that we will save.
HtmlSaveOptions saveOptions = new HtmlSaveOptions();
saveOptions.SaveFormat = SaveFormat.Epub;
saveOptions.Encoding = Encoding.UTF8;

// By default, an output .epub document will have all its contents in one HTML part.
// A split criterion allows us to segment the document into several HTML parts.
// We will set the criteria to split the document into heading paragraphs.
// This is useful for readers who cannot read HTML files more significant than a specific size.
saveOptions.DocumentSplitCriteria = DocumentSplitCriteria.HeadingParagraph;

// Specify that we want to export document properties.
saveOptions.ExportDocumentProperties = true;

doc.Save(ArtifactsDir + "HtmlSaveOptions.Doc2EpubSaveOptions.epub", saveOptions);

See Also