SubDocument.AppendDocumentContent(Stream, DocumentFormat) Method
Appends content from the stream.
A Stream representing a sequence of bytes interpreted as the content to append.
A DocumentFormat enumeration specifying the format of the data contained in the stream.
A DocumentRange representing a range with the appended content.
The AppendDocumentContent method loads the specified stream into the internal document model with the help of the specific importer.
After the stream is imported successfully, the new document model is inserted at the end of the main document.
The appended text starts with a new paragraph and preserves formatting. It is appended to an existing section and gets all section details (header, footer, page and print layout).
If the text being inserted contains document styles which are not present in the current document, the styles are copied to the resulting document.
If the document whose content is being inserted contains floating objects, such as pictures or text boxes, they are inserted into the corresponding positions in a newly created range.
When you pass the DocumentFormat.Undefined value as the format parameter, the inserted content's format is determined automatically.