Here's how to reproduce the bug. 1. create an empty Writer document et check that the background of the page is area is set to "None". 2. insert an OLE object by creating a new Draw object and check that its page property has "background" set to "None". 3. export the Writer document as pdf The pdf shows that the background of the OLE object is grey. The problem is the same when printing as when exporting to pdf. Note that I changed the application colours in the LibreOffice options : I set document background to grey instead of white. I though that the application colour shouldn't change the way a document is rendered for printing or pdf. I just want to alter the colour when editing. When printing, the printer could set a different paper colour (and let the automatic font colour be chosen when printing).
Created attachment 187544 [details] Writer document with Draw OLE object inserted
Created attachment 187545 [details] PDF export
Menu/Tools/Options/LibreOffice Writer/Print – Contents – Page background
Sorry my mistake. The issue is that Draw, even alone, has no option to disable print background. Mas que un bug, parace una solicitud de mejora, añadiendo la opción en Draw.
Sorry. More than a bug, it looks like an enhancement request, adding the option to Draw.