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

Joseph Wright joseph.wright at morningstar2.co.uk
Sun Aug 12 10:19:04 CEST 2018


On 12/08/2018 09:00, Hans Hagen wrote:
> 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.

To be clear, that's not required by the PDF spec?

Joseph



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