espocrm-base/application/Espo/Resources/metadata/app/pdfEngines.json

{
    "Dompdf": {
        "implementationClassNameMap": {
            "entity": "Espo\\Tools\\Pdf\\Dompdf\\EntityPrinter"
        },
        "fontFaceList": [
            "Courier",
            "Helvetica",
            "Times",
            "Symbol",
            "ZapfDingbats",
            "DejaVu Sans",
            "DejaVu Serif",
            "DejaVu Sans Mono"
        ]
    }
}