Font Replacement - PowerPoint Java API

If you change your mind about using a font, you can replace that font with another font. All instances of the old font will be replaced by the new font.

Aspose.Slides allows you to replace a font this way:

1. Load the relevant presentation.
2. Load the font that will be replaced.
3. Load the new font.
4. Replace the font.
5. Write the modified presentation as a PPTX file.

This Java code demonstrates font replacement:

// Loads a presentation
Presentation pres = new Presentation("Fonts.pptx");
try {
    // Loads the source font that will be replaced
    IFontData sourceFont = new FontData("Arial");
    
    // Loads the new font
    IFontData destFont = new FontData("Times New Roman");
    
    // Replaces the fonts
    pres.getFontsManager().replaceFont(sourceFont, destFont);
    
    // Saves the presentation
    pres.save("UpdatedFont_out.pptx", SaveFormat.Pptx);
} finally {
    if (pres != null) pres.dispose();
}

Note

To set rules that determine what happens in certain conditions (if a font cannot be accessed, for example), see Font Substitution.