[luatex] "binary" marker missing in luatex 1.09, Development id: 6884

[Hans Hagen]

On 8/11/2018 5:28 PM, Ulrike Fischer wrote:
> I just got the newest luatex 1.09, development id: 6884, from
> w32tex.org and ran some tests.
> 
> In the pdf there is the "binary" marker on the line after the pdf
> version missing. The uncompressed pdf starts like this:
> 
> %PDF-1.5
> 3 0 obj
> << /Length 449 >>
> 
> instead of
> 
> %PDF-1.5
> %ÐÔÅØ
> 3 0 obj
> <</Length 133       >>
It's on purpose. (Btw, there were cases when whole blobs of e.g. 
executable code was put there.) The proper way to identitify a file 
doesn't depend on that piece of obscured "PTEX" but on metadata and such.

Hans

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