Set Default Font Name using C++

Aspose.PDF for C++ API allows you to set a default font name when a font is not available in the document. You can use DefaultFontName property of RenderingOptions class to set the default font name. In case DefaultFontName is set to nullptr the Times New Roman font will be used. The following code snippet shows how to set a default font name when saving PDF into an image:

void WorkingWithImages::ExampleSetDefaultFontName()
{
    String _dataDir("C:\\Samples\\");
    auto document = MakeObject<Document>(_dataDir + u"input.pdf");

    auto imageStream = System::IO::File::OpenWrite(_dataDir + u"SetDefaultFontName.png");

    auto resolution = MakeObject<Aspose::Pdf::Devices::Resolution>(300);
    auto pngDevice = MakeObject<Aspose::Pdf::Devices::PngDevice>(resolution);
    auto ro = MakeObject<RenderingOptions>();
    ro->set_DefaultFontName(u"Arial");
    pngDevice->set_RenderingOptions(ro);
    pngDevice->Process(document->get_Pages()->idx_get(1), imageStream);
}