Manage Superscript and Subscript in Presentations Using C++
Manage Superscript and Subscript Text
You can add super script and sub script text inside any paragraph portion. For adding Superscript or Subscript text in Aspose.Slides text frame one must use Escapement properties of PortionFormat class.
This property returns or sets the superscript or subscript text (value from -100% (subscript) to 100% (superscript). For example :
- Create an instance of Presentation class.
- Obtain the reference of a slide by using its Index.
- Add an IAutoShape of Rectangle type to the slide.
- Access the ITextFrame associated with the IAutoShape.
- Clear existing Paragraphs
- Create a new paragraph object for holding super script text and add it to the IParagraphs collection of the ITextFrame.
- Create a new portion object
- Set Escapement property for the portion between 0 to 100 for adding super script. (0 mean no super script)
- Set some text for Portion and then add that in portion collection of paragraph.
- Create a new paragraph object for holding sub script text and add it to the IParagraphs collection of the ITextFrame.
- Create a new portion object
- Set Escapement property for portion between 0 to -100 for adding super script. (0 mean no sub script)
- Set some text for Portion and then add that in portion collection of paragraph.
- Save the presentation as a PPTX file.
The implementation of the above steps is given below.
FAQ
Will superscript and subscript be preserved when exporting to PDF or other formats?
Yes, Aspose.Slides properly retains superscript and subscript formatting when exporting presentations to PDF, PPT/PPTX, images, and other supported formats. The specialized formatting remains intact in all output files.
Can superscript and subscript be combined with other formatting styles such as bold or italics?
Yes, Aspose.Slides allows you to mix various text styles within a single portion of text. You can enable bold, italics, underline, and simultaneously apply superscript or subscript by configuring the corresponding properties in PortionFormat.
Do superscript and subscript formatting work for text inside tables, charts, or SmartArt?
Yes, Aspose.Slides supports formatting within most objects, including tables and chart elements. When working with SmartArt, you need to access the appropriate elements (such as SmartArtNode) and their text containers, and then configure the PortionFormat properties in a similar manner.