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I have been using the latest version of Spacemacs, with AUCTeX. However, when I compile the .tex file into a .pdf file, it opens in my default external PDF viewer software. Is there a way to make LaTeX compile into pdfs that get opened in another Spacemacs buffer and framewindow?

My computer runs Windows 10 64 bits.

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    pdftools will do this. See the github page for compiling on Windows. – Dan♦ Sep 2 '17 at 16:55
  • @Dan thanks for the suggestion. I will give it a try, even if I still do not understand why is that needed, since in most if not all screenshots of AUCTeX in action, PDFs seem to be displayed embedded, not in an external window. – Louis15 Sep 4 '17 at 1:34
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It's been ages since I set this up for myself, but here's the code I use. Essentially, it's just registering Emacs itself (or, rather, emacsclient) as an external viewer.

(add-to-list 'TeX-view-program-selection '(output-pdf "Emacs"))
(add-to-list 'TeX-view-program-list '("Emacs" "emacsclient -n %o"))

Caveats: I don't know if this will work properly if you're not using emacsclient, and I don't know how it will interact with Spacemacs.

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  • Thanks for your answer. Unfortunately, though, it seems to nor work in Spacemacs – Louis15 Sep 8 '17 at 1:06
  • Can you open PDFs with Emacs at all? If so, Aaron's answer should work. If not, the problem may be limitations with Windows, rather than spacemacs – Tyler Sep 8 '17 at 7:55
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Here is how I ended up solving the problem:

(setq TeX-view-program-selection '((output-pdf "PDF Tools"))
  TeX-view-program-list '(("PDF Tools" TeX-pdf-tools-sync-view))
  TeX-source-correlate-start-server t
)
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