Substitute missing fonts

In case your presentation document contains a font that is not installed into the system GroupDocs.Viewer will use a default font. GroupDocs.Viewer for Java enables you to specify font substitution with setDefaultFontName() setting.

Font substitution

To set font substitution for missing fonts please use the following code:

When converting to HTML with embedded resources:

    try (Viewer viewer = new Viewer("input.pptx")) {
        HtmlViewOptions viewOptions = HtmlViewOptions.forEmbeddedResources("output/html_embedded/p_{0}.html");
        viewOptions.setDefaultFontName("Times New Roman");
        viewer.view(viewOptions);
    }

When converting to HTML with external resources:

    try (Viewer viewer = new Viewer("input.pptx")) {
        HtmlViewOptions viewOptions = HtmlViewOptions.forExternalResources("output/html_external");
        viewOptions.setDefaultFontName("Times New Roman");
        viewer.view(viewOptions);
    }

Output HTML with default font:

Output HTML with “Times New Roman” font:

When converting to PDF:

    try (Viewer viewer = new Viewer("input.pptx")) {
        PdfViewOptions viewOptions = new PdfViewOptions("output.pdf");
        viewOptions.setDefaultFontName("Times New Roman");
        viewer.view(viewOptions);
    }

Output PDF with default font:

Output PDF with “Times New Roman” font:

Rendering PowerPoint Presentations Rendering FODP and ODP files