Дана 04.09.2022. у 12:36, ntg-context-request@ntg.nl пише:

looks like the library is loaded ... so what is your test

we don't do png, we do outlines (actually native zint graphic structures 
that we then convert with mp)

Hans



Hi Hans,
here is the example that I used, basically I took it from the from the 
module:

\starttext
\usemodule[zint]
     \startTEXpage
         \barcode[alternative=PDF417,text={Hans Hagen}]%
         \blank
         \barcode[alternative=pdf417,text={Ton Otten}]%
         \blank
         \barcode[alternative=ISBN,text=9789490688011]%
         \blank
         \barcode[alternative=isbn,text=9789490688011,width=3cm]%
         \blank
         \dontleavehmode
         %\barcode[alternative=qr code,text={This is ConTeXt MKIV : #1}]
         \barcode[alternative=qr code,text={This is ConTeXt LMTX}]
         \barcode[alternative=qr code,text={\input{tufte}},width=3cm]
     \stopTEXpage
\stoptext

The resulting PDF has just empty page

Best regards,
Ivan