Hi Max, On 2023/06/23 7:02, Max Chernoff wrote: > Can you try changing line 31 of luaimageembed.sty from > > ltn12.sink.file(io.open(file_name, "a")) > > to > > ltn12.sink.file(io.open(file_name, "ba")) "ba" should be "ab". I tested that the example worked on windows by ltn12.sink.file(io.open(file_name, "ab")) Thanks, Akira