How to change default PDF viewer?

How to change default PDF viewer?

[Nikolaus Rath]

Hello,

Can someone tell me how to change the default PDF viewer from Emacs' new
internal document viewer to an external program?

Thanks,
-Nikolaus

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Re: How to change default PDF viewer?

[Erik Colson]

Nikolaus Rath <Nikolaus@rath.org> writes:

> Can someone tell me how to change the default PDF viewer from Emacs' new
> internal document viewer to an external program?

which OS are you on ?
-- 
erik colson

Re: How to change default PDF viewer?

[Nikolaus Rath]

On Aug 25 2015, Erik Colson <eco@ecocode.net> wrote:
> Nikolaus Rath <Nikolaus@rath.org> writes:
>
>> Can someone tell me how to change the default PDF viewer from Emacs' new
>> internal document viewer to an external program?
>
> which OS are you on ?

Gnus/5.130014 (Ma Gnus v0.14) Emacs/24.4 (gnu/linux)


Best,
-Nikolaus

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Re: How to change default PDF viewer?

[Charles Philip Chan]

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On 25 Aug 2015, Nikolaus@rath.org wrote:
On Aug 25 2015, Erik Colson <eco@ecocode.net> wrote:
> Nikolaus Rath <Nikolaus@rath.org> writes:
>
>>> Can someone tell me how to change the default PDF viewer from Emacs' new
>> internal document viewer to an external program?
>
>> which OS are you on ?

> Gnus/5.130014 (Ma Gnus v0.14) Emacs/24.4 (gnu/linux)

I had the same issue. The problem these days is that Emacs favours a
Lisp based reader (doc-view, in this case) to whatever is define in
mailcap. I googled the problem and this is the solution I found that
works. For example, I have define Okular as the pdf reader in mailcap:

#+BEGIN_SRC emacs-lisp
;;Remove doc-view so pdf will open with Okular
(setcdr
   (assoc "application" mailcap-mime-data)
   (remove '("pdf"
             (viewer . doc-view-mode)
             (type . "application/pdf")
             (test eq window-system 'x))
           (cdr (assoc "application" mailcap-mime-data))))
#+END_SRC

Just cut and paste what is between BEGIN_SRC and END_SRC and put it in
your init file.

Charles

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Re: How to change default PDF viewer?

[Nikolaus Rath]

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On Aug 25 2015, Charles Philip Chan <cpchan@bell.net> wrote:
> On 25 Aug 2015, Nikolaus@rath.org wrote:
> On Aug 25 2015, Erik Colson <eco@ecocode.net> wrote:
>> Nikolaus Rath <Nikolaus@rath.org> writes:
>>
>>>> Can someone tell me how to change the default PDF viewer from Emacs' new
>>> internal document viewer to an external program?
>>
>>> which OS are you on ?
>
>> Gnus/5.130014 (Ma Gnus v0.14) Emacs/24.4 (gnu/linux)
>
> I had the same issue. The problem these days is that Emacs favours a
> Lisp based reader (doc-view, in this case) to whatever is define in
> mailcap. I googled the problem and this is the solution I found that
> works. For example, I have define Okular as the pdf reader in mailcap:
>
> #+BEGIN_SRC emacs-lisp
> ;;Remove doc-view so pdf will open with Okular
> (setcdr
>    (assoc "application" mailcap-mime-data)
>    (remove '("pdf"
>              (viewer . doc-view-mode)
>              (type . "application/pdf")
>              (test eq window-system 'x))
>            (cdr (assoc "application" mailcap-mime-data))))
> #+END_SRC
>
> Just cut and paste what is between BEGIN_SRC and END_SRC and put it in
> your init file.

Works perfectly! Thanks a bunch!

Best,
-Nikolaus

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Re: How to change default PDF viewer?

[Erik Colson]

Nikolaus Rath <Nikolaus@rath.org> writes:

> Gnus/5.130014 (Ma Gnus v0.14) Emacs/24.4 (gnu/linux)

on linux emacs reads the user .mailcap file.
you should define which program you want to use in it.

best
-- 
erik colson

Re: How to change default PDF viewer?

[Nikolaus Rath]

On Aug 25 2015, Erik Colson <eco@ecocode.net> wrote:
> Nikolaus Rath <Nikolaus@rath.org> writes:
>
>> Gnus/5.130014 (Ma Gnus v0.14) Emacs/24.4 (gnu/linux)
>
> on linux emacs reads the user .mailcap file.

The mailcap file defines *external* viewers. My problem is that
Gnu/emacs is using its *internal* viewer, and *not* an external one.


Best,
-Nikolaus

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