// The path to the documents directory.
        String dataDir = Utils.getSharedDataDir(SaveOneNoteDocToStream.class) + "load/";

        String fontFile = Paths.get(dataDir, "geo_1.ttf").toString();

        // Load the document into Aspose.Note.
        Document oneFile = new Document(Paths.get(dataDir, "missing-font.one").toString());

        // Save the document as PDF
        dataDir = dataDir + "SaveUsingDocumentFontsSubsystemWithDefaultFontFromFile_out.pdf";

        PdfSaveOptions options = new PdfSaveOptions();
        options.setFontsSubsystem(DocumentFontsSubsystem.usingDefaultFontFromFile(fontFile));
        oneFile.save(dataDir, options);