If I load a Word document into a JTextPane, is there a way I could drop a custom shape in it, then save it as a new Word document?
The results I'm looking for are just like dropping a shape anywhere onto the document using Insert-> Shapes in MS Word.
docx4all is a Swing-based docx editor.
Like DocxEditorKit, it is built on top of docx4j.
You'd need to extend it to support the functionality you are describing.
You can try to extend the DocxEditorKit http://java-sl.com/docx_editor_kit.html adding your feature there
来源：https://stackoverflow.com/questions/15611562/adding-custom-shapes-to-jtextpane-and-saved-to-new-word-document