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From: Colin Baxter <m43cap@yandex.com>
Subject: Re: pdf files with openwith only, and only this.
Date: Thu, 04 Jul 2019 12:38:37 +0100
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 (Joseph Vidal-Rosset's message of "Thu, 4 Jul 2019 13:23:42 +0200")
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To: Joseph Vidal-Rosset <joseph.vidal.rosset@gmail.com>
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>>>>> Joseph Vidal-Rosset <joseph.vidal.rosset@gmail.com> writes:

    > Dear Colin (cc. John), Many thanks ! Unfortunately, I have always
    > the same result. Here is the message:

    > Viewing with pdf-view-mode pdf-info-encrypted-p:
    > pdf-info-epdfinfo-program is not executable

    > is org-ref the culprit? I cc. to John Kitchin.

That is odd. I slightly modified my code for your situation of using
evince. I actually use xpdf and

 (add-hook 'org-mode-hook
           '(lambda ()
            (delete '("\\.pdf\\'" . default) org-file-apps)
            (add-to-list 'org-file-apps '("\\.pdf\\'" . "xpdf %s"))))

works for me. I assumed just changing xpdf to evince would be
sufficient.

Something more subtle may be happening.

Best wishes,


Colin Baxter
www.Colin-Baxter.com