I am using LibreOffice 18.104.22.168.0+ under Fedora 30. Documentation in help and on the web tells me I can add a textual watermark just by selecting Format → Watermark Menu item and then filling out a dialog box with the desired text, font, angle, transparency, and color. No such menu choice is present under the Format menu in either a new or existing document that I’ve opened. Any ideas as to what I can do to remedy this situation. Below the line is an attempt to paste copied documentation from this URL https://help.libreoffice.org/6.2/en-US/text/swrite/01/watermark.html?DbPAR=WRITER#bm_id171516897713635
Insert a watermark text in the current page style background.
To access this command…
Choose Format - Watermark.
A watermark is an identifying image or pattern in paper that appears as various shades of brightness when viewed by transmitted light. Watermarks were originally created directly during paper manufacturing to discourage counterfeiting of documents, currency bills, stamps and more.
Use watermarks in LibreOffice Writer to simulate a paper watermark on the document pages.
Fill the dialog settings below.
The values entered applies to the actual page style.