// 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 + "SaveUsingDocumentFontsSubsystemWithDefaultFontFromStream_out.pdf";

        InputStream stream = new FileInputStream(fontFile);
        try
        {
            PdfSaveOptions options = new PdfSaveOptions();
            options.setFontsSubsystem(DocumentFontsSubsystem.usingDefaultFontFromStream(stream));
            oneFile.save(dataDir, options);
        }
        catch (Exception e)
        {
            stream.close();
        }