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While submitting my paper (produced using Overleaf) to arXiv, I found that the main TeX file (named ms.tex) is treated as a PostScript file.

Then, after processing the files, I get the following line in the AutoTeX log:

[verbose]: <ms.tex> is of type 'Postscript'.

Then, after a few lines, I get the error:

[verbose]:  No tex files present, going to hope we can process as a postscript or dvi only package.

Then, in the preview of the paper, I could only see the figures and no text of the paper. What is wrong with the TeX document?

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    are the first two characters of the file %! ?
    – David Carlisle
    Jan 12, 2022 at 8:15
  • Yes, the first line of the TeX file is '%! TeX program = xelatex'. This line is written on the sample file provided by the journal.
    – Richard
    Jan 12, 2022 at 8:30

1 Answer 1

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%! is the magic marker used to identify PostScript used by the Unix/Linux file program and other tools.

Some editors (but not Overleaf) use a % !TeX syntax comment to control the processing done on the file. They all (now) allow a space between the % and the ! to avoid misinterpretation as PostScript.

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