B4J Question webview load zoomed out to fit A4 sized page

[le_toubib]

hi all
trying to load Html pages sized to A4 into a webview so as to use jfx8print ..
but pages are dynamic , and sometimes the sizes differ ,
how to shrink content to always fit webview size .
i have seen THIS tutorial by @Peter Simpson , amazing work , but he is using a layout not html pages .
thanks