Google Apps Script project for automating formatting in Google Docs

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Features:

  • Scans all paragraphs in the active Google Docs document.
  • Identifies headings (Heading 1 to Heading 6).
  • Resets their font sizes to predefined values.
  • Can be run manually or set as a trigger.
function resetHeadingSizes() {
  var doc = DocumentApp.getActiveDocument();
  var body = doc.getBody();
  var paragraphs = body.getParagraphs();
  
  // Define default font sizes for headings
  var headingSizes = {
    [DocumentApp.ParagraphHeading.HEADING1]: 24,
    [DocumentApp.ParagraphHeading.HEADING2]: 20,
    [DocumentApp.ParagraphHeading.HEADING3]: 18,
    [DocumentApp.ParagraphHeading.HEADING4]: 16,
    [DocumentApp.ParagraphHeading.HEADING5]: 14,
    [DocumentApp.ParagraphHeading.HEADING6]: 12
  };

  // Iterate through paragraphs and reset heading sizes
  paragraphs.forEach(paragraph => {
    var heading = paragraph.getHeading();
    if (heading in headingSizes) {
      paragraph.setFontSize(headingSizes[heading]);
    }
  });

  Logger.log("Headings have been reset to default sizes.");
}

How to Use:

  1. Open a Google Docs document.
  2. Click Extensions > Apps Script.
  3. Copy and paste the script into the editor.
  4. Click the Run button.
  5. Authorize the script when prompted.
  6. The script will reset all heading sizes in the document.