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Hi Basile,

This is a very interesting hack.
It would be nice to have some volunteers to investigate this further.

Question 1: if you replace 'TeXmacs' by 'Texmacs' or 'GNU Texmacs' instead of 
'T.Xmacs', does it still work?

Question 2: could someone please try with any of the TeX Gyre fonts (which 
also have TeX in their name)?

Question 3: if you replace 'Computer Modern' with 'Knuth's Modern Font' and 
(if necessary) occurrences of
  CMR, CMMI, CMEX, etc. with something else (just on lines with /FontName or 
/BaseFont), then does this
  also do the trick?

Best wishes, --Joris



On Sat, Jul 10, 2021 at 06:52:11PM +0200, Basile Audoly wrote:
> Hi everyone,
> 
> arXiv incorrectly identifies PDF documents produced by TeXmacs as if they 
> had been produced by LaTeX and blocks them, see my previous email.
> 
> Here a dirty but simple hack to work around this:
> * change the document font from Computer Modern (a.k.a. Roman) to 
> Optima—any other font except CM will probably work as well
> * export to PDF
> * open the PDF document in emacs, search for the string "TeXmacs" and 
> replace the two occurrences corresponding to the PDF Creator and Producer 
> with "T.Xmacs"
> 
> Of course, this prevents arXiv from being aware of the full content of the 
> document. Exporting to LaTeX is still a viable (but more complicated) 
> alternative.
> 
> Basile
>