How can I print very large alphabet letters

When I enlarge the letters on the screen they look great but when I print them they are small

Do you use zoom to enlarge on screen? or do you increase font size to, say, 200 pt?

I think, the maximum font size is 72 points. Besides, what kind of document is it?

At least in Writer, maximum font size is 999.9.

Indeed. I’m sure there was a limitation, but apparently it has been eliminated.

Change the font size rather than using the zoom function to increase the size of what you see. Ideally create a character style with the font characteristics you need then apply it to the relevant text. See Styles and Formatting - LibreOffice Help

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