// Load the document into Aspose.Note.
String dataDir = Utils.getSharedDataDir(CreatePasswordProtectedOneNoteDocuments.class) + "load/";

Document document = new Document(dataDir + "Sample1.one");

OneSaveOptions saveOptions = new OneSaveOptions();

saveOptions.setDocumentPassword("pass");

document.save(dataDir + "CreatePasswordProtected_out.one", saveOptions);