When I type the quotation by ``'' in editor and then output a PDF file, these symbols cannot display. For example, if I want to display


the PDF will only show


I know typing `` and '' is the correct way to show quotation marks. But, my problem is, when I type two apostrophes, the TexShop will automatically "correct" my types into ".

  • You should not use " in latex markup: use `` for open quote and '' (that is two single quotes) for close quote Aug 26, 2014 at 15:33
  • @DavidCarlisle Thx, David. But my problem is, when I type two apostrophes, the TexShop will automatically "correct" my types into ".
    – datcn
    Aug 26, 2014 at 15:36
  • 2
    try to disable Key Bindings in preferences?
    – Symbol 1
    Aug 26, 2014 at 15:43
  • @datcn that's odd for an editor designed for Tex use, to automatically break your input. Sorry I can't help then, I have never used texshop Aug 26, 2014 at 15:45
  • 2
    Just use package csquotes and write instead of quotation marks \enquote{Hi} to get the result you want ...
    – Mensch
    Aug 26, 2014 at 15:51

2 Answers 2


I assume that your problem is that Texshop convert the quotes not to straight " but to curly “citation marks”, cfr. this similar question.

Since you have not provided a MWE, I just have to guess, but those characters are eight bits and require proper support in PdfLateX to show up in the PDF (have a look at the logs to see error messages).

Try to add the following lines to the preamble of your document:

\usepackage{lmodern}  % or your other font package

I anticipate that the quotation marks now show up in the PDF.

If not, please provide an MWE.

  • Many thanks for your answer, @Sveinung . However, I even cannot type " before generating the PDF file. Luckily, this problem has been solved by choose another encoding format of the editor.
    – datcn
    Aug 29, 2014 at 12:41
  • @datcn This is the reason for why you are asked to provide an MWE. If you had done that, we could probably had eliminated my suggestion from the start.
    – Sveinung
    Aug 29, 2014 at 19:37

I finally noticed that this problem was caused by the chosen encoding format of TexShop editor. I change it back to UTF-8 and then the problem disappeared.

Thanks a lot for all your answers and inspirations.

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