I have modify this sample \newdimen\currentlayerheight \newdimen\currentlayerwidth \newbox\Content \definelayer[TicketSummary] [x=\backspace, y=\topspace, width=4in, height=4in, repeat=no] \setlayer[TicketSummary][hoffset=.5\backspace, voffset=2.5in]{% \unprotect% \currentlayerheight=\dimexpr\csname @@llTicketSummaryheight\endcsname\relax% \currentlayerwidth=\dimexpr\csname @@llTicketSummarywidth\endcsname\relax% \protect% \setbox\Content=\vbox{\hsize=\currentlayerwidth% \bold{Client Name:} \\ Acme Corporation \\ \bold{Location of Work:} Main warehouse }% \ht\Content=\currentlayerheight% \ruledhbox{\box\Content} } \setupbackgrounds[page][background={TicketSummary}] \starttext Hello world! \stoptext minimals: no erros, bu evince says Error: ExtGState 'Tr0' is unknown Error: ExtGState 'Tr0' is unknown Error: ExtGState 'Tr0' is unknown Error: ExtGState 'Tr0' is unknown Error: ExtGState 'Tr0' is unknown minimals-beta: errors ! You can't use `\dimexpr' in restricted horizontal mode. l.12 \currentlayerheight=\dimexpr \csname @@llTicketSummaryheight\endcsname\r... ? -- luigi