Am 31.01.2011 um 16:37 schrieb Skip Collins:

I am trying to create a layer to contain letterhead graphics. I would like the letterhead to appear by default when a pdf is opened and printed. But I would also like to be able to hide the letterhead layer in Acrobat when printing on pre-printed paper.

My simplistic, always-displayed letterhead looks like:

%%% start code %%% \definelayer[letterhead] [x=0in,y=0in,width=\paperwidth,height=\paperheight,state=start] \setlayer[letterhead] [hoffset=1in,voffset=0.5in] {LetterHeadMark} \setupbackgrounds[page][background={letterhead}] \starttext Hello, World! \stoptext %%% stop code %%%

But there is no obvious way to turn this off when printing. Contextgarden suggests using \defineproperty to create a pdf layer. I can show and hide this layer in acrobat, but it always opens up hidden. I am also not sure how to place the letterhead exactly on the page using this method.

Any suggestions?

In MkIV \startproperty is obsolete and you should use \startviewerlayer: \defineviewerlayer[letterhead] \definelayer [letterhead] [width=\paperwidth, height=\paperheight] \setlayer [letterhead] [x=1in, y=0.5in] {\startviewerlayer[letterhead]% LetterHeadMark \stopviewerlayer} \setupbackgrounds[page][background=letterhead] \starttext Hello, World! \stoptext Wolfgang