افزودن واترمارک از طریق C++

    // Read pdf file to Aspose Document
    doc = MakeObject<Document>(u"1.pdf");

    // Create artifact with image
    artifact = MakeObject<WatermarkArtifact>();
    artifact->SetImage(u"watermark.jpg");

    // Set artifact position and rotation
    artifact->set_ArtifactHorizontalAlignment(Aspose::Pdf::HorizontalAlignment::Center);
    artifact->set_ArtifactVerticalAlignment(Aspose::Pdf::VerticalAlignment::Center);
    artifact->set_Rotation(15);
    artifact->set_Opacity(1);
    artifact->set_IsBackground(true);

    // Add artifact to first page
    doc->get_Pages()->idx_get(1)->get_Artifacts()->Add(artifact);

    // save result pdf to file
    doc->Save(u"add_watermark.pdf",SaveFormat::Pdf);