On 2013-06-17, at 12:05 PM, Christian Prim <christian.prim@gmx.ch> wrote:

> Hi list
> 
> rendering a very easy formula with greek text in it produces a pdf-document that has not  a valid utf-8 string.
> 
> I use evince for displaying pdfs under ubuntu linux. The document appears correctly on the screen but stops printing after a greek letter in a formula.
> 
> The error-report says:
> Internal Error: cairo context error: input string not valid UTF-8

How are you compiling the document (mkii or mkiv) Can you attach the actual PDF as well (small attachments are allowed on the list). 


> The same document compiled in live.contextgarden.net doesn't produce a mistake and can be printed with evince.

contextgarden uses Mkii rather than Mkiv

Aditya