By default, PDF’s and DOCX are scaled to 1366 pixels, however this can be changed to any size. Although when scaling a document, the results may not always be perfect and you may want to try a few different sizes before you are happy. Sometimes it is useful to match the have the same browser width as the width of the document, to do this pass -1 to the browser width parameter.
In the below examples PDF's are being created, with the browser width being set to 1500px.
<script src="https://cdn.jsdelivr.net/npm/@grabzit/js@3.4.8/grabzit.min.js"></script>
<script>
GrabzIt("Sign in to view your Application Key").ConvertURL("http://www.spacex.com",
{"format": "pdf", "download": 1, "bwidth": 1500}).Create();
</script>