Render Presentation with Fallback Font

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The following example includes these steps:

  1. We create fallback font rules collection.
  2. Remove a fallback font rule and addFallBackFonts to another rule.
  3. Set rules collection to getFontsManager.getFontFallBackRulesCollection method.
  4. With Presentation.save method we can save presentation in the same format, or save it in another one. After fallback font rules collection is set to FontsManager, these rules are applied during any operations over the presentation: save, render, convert, etc.
  # Create new instance of a rules collection
  $rulesList = new FontFallBackRulesCollection();
  # create a number of rules
  $rulesList->add(new FontFallBackRule(0x400, 0x4ff, "Times New Roman"));
  foreach($rulesList as $fallBackRule) {
    # Trying to remove FallBack font "Tahoma" from loaded rules
    $fallBackRule->remove("Tahoma");
    # And to update of rules for specified range
    if (java_values($fallBackRule->getRangeEndIndex()) >= 0x4000 && java_values($fallBackRule->getRangeStartIndex()) < 0x5000) {
      $fallBackRule->addFallBackFonts("Verdana");
    }
  }
  # Also we can remove any existing rules from list
  if (java_values($rulesList->size()) > 0) {
    $rulesList->remove($rulesList->get_Item(0));
  }
  $pres = new Presentation("input.pptx");
  try {
    # Assigning a prepared rules list for using
    $pres->getFontsManager()->setFontFallBackRulesCollection($rulesList);
    # Rendering of thumbnail with using of initialized rules collection and saving to JPEG
    $slideImage = $pres->getSlides()->get_Item(0)->getImage(1.0, 1.0);
    # Save the image to disk in JPEG format
    try {
      $slideImage->save("Slide_0.jpg", ImageFormat::Jpeg);
    } finally {
      if (!java_is_null($slideImage)) {
        $slideImage->dispose();
      }
    }
  } finally {
    if (!java_is_null($pres)) {
      $pres->dispose();
    }
  }
Create Fallback Fonts Collection