// The path to the documents directory. const String outPath = u"../out/ParagraphsAlignment_out.pptx"; const String templatePath = u"../templates/DefaultFonts.pptx"; // Load the desired the presentation SharedPtr<Presentation> pres = MakeObject<Presentation>(templatePath); // Access first slide SharedPtr<ISlide> slide = pres->get_Slides()->idx_get(0); // Accessing the first and second placeholder in the slide and typecasting it as AutoShape SharedPtr<IShape> shape1 = slide->get_Shapes()->idx_get(0); SharedPtr<IShape> shape2 = slide->get_Shapes()->idx_get(1); SharedPtr<AutoShape> ashp1 = DynamicCast<Aspose::Slides::AutoShape>(shape1); SharedPtr<AutoShape> ashp2 = DynamicCast<Aspose::Slides::AutoShape>(shape2); SharedPtr<ITextFrame> tf1 = ashp1->get_TextFrame(); SharedPtr<ITextFrame> tf2 = ashp2->get_TextFrame(); // Change the text in both placeholders tf1->set_Text (u"Center Align by Aspose"); tf2->set_Text(u"Center Align by Aspose"); // Accessing the first Paragraph SharedPtr<IParagraph> para1 = tf1->get_Paragraphs()->idx_get(0); SharedPtr<IParagraph> para2 = tf2->get_Paragraphs()->idx_get(0); // Aligning the text paragraph to center para1->get_ParagraphFormat()->set_Alignment (TextAlignment::Center); para2->get_ParagraphFormat()->set_Alignment(TextAlignment::Center); // Save PPTX to Disk pres->Save(outPath, Aspose::Slides::Export::SaveFormat::Pptx);