What happens when the -t option is different from the file extension after -o

What happens when the -t option is different from the file extension after -o

[George Emad]

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Hello, 
I am converting some markdown files to a pdf, but I am using a lot of CSS 
for formatting,

I found out that if I am using: 

*--toc --from=gfm -t html5  -o myfile.pdf*

It actually do keep the css formatting and doesn't convert it to latex 
(similar results to opening it in chrome and printing it, with very minor 
changes) with one additional bug, with the "TOC table of content"

Description: 
It generate a html table of content inside the pdf, so it's broken when you 
try to click it,
as it refers to html section <mypag.html#theSection>

I have two questions: 
1) Is this a normal use case when I use different file extension than the 
format after -t ? 
2) How can I fix this bug with the TOC ? 

I am pretty new to pandoc, and tried to find the answer in the 
documentations and on the mailing list archive, will really appreciate your 
help.

Regards, 
George 
 

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Re: What happens when the -t option is different from the file extension after -o

[Albert Krewinkel]

Hi George,

George Emad <engr.georgeemad-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> 1) Is this a normal use case when I use different file extension than
> the format after -t ?

Absolutely. Pandoc supports multiple PDF engines, and both the `-t` and
`--pdf-engine` parameters are taken into account when deciding which
format and which engine should be used. If the `--pdf-engine` parameter
is given, then pandoc uses that engine together with the appropriate
output format; if `-t`/`--to` is given then a engine is picket.

Here's the list of formats and suitable engines:

  - latex: pdflatex, lualatex, xelatex, latexmk, tectonic
  - html: wkhtmltopdf, weasyprint, pagedjs, prince
  - context: context
  - ms: pdfroff
  - typst: typst

The first engine for each format is the default engine. So by using `-t`
you triggered PDF generation through wkhtmltopdf, which, it appears, is
installed on your system.

> 2) How can I fix this bug with the TOC ?

My recommendation would be to try one of the alternative engines. If
that doesn't work, please file a bug report in the issue tracker at
https://github.com/jgm/pandoc/issues


-- 
Albert Krewinkel
GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124

Re: What happens when the -t option is different from the file extension after -o

['William Lupton' via pandoc-discuss]

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George,

If you set pandoc's --verbose flag then you get a lot of detailed output,
including the wkhtmltopdf command line and the generated HTML (that is
passed to wkhtmltopdf).

If you'd be happy to share any or all of this output (or send it to me
directly), I'd be happy to take a look and see whether anything obvious is
going on.

Cheers,
William

On Wed, 29 Mar 2023 at 13:17, Albert Krewinkel <albert+pandoc-9EawChwDxG8hFhg+JK9F0w@public.gmane.org>
wrote:

> Hi George,
>
> George Emad <engr.georgeemad-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > 1) Is this a normal use case when I use different file extension than
> > the format after -t ?
>
> Absolutely. Pandoc supports multiple PDF engines, and both the `-t` and
> `--pdf-engine` parameters are taken into account when deciding which
> format and which engine should be used. If the `--pdf-engine` parameter
> is given, then pandoc uses that engine together with the appropriate
> output format; if `-t`/`--to` is given then a engine is picket.
>
> Here's the list of formats and suitable engines:
>
>   - latex: pdflatex, lualatex, xelatex, latexmk, tectonic
>   - html: wkhtmltopdf, weasyprint, pagedjs, prince
>   - context: context
>   - ms: pdfroff
>   - typst: typst
>
> The first engine for each format is the default engine. So by using `-t`
> you triggered PDF generation through wkhtmltopdf, which, it appears, is
> installed on your system.
>
> > 2) How can I fix this bug with the TOC ?
>
> My recommendation would be to try one of the alternative engines. If
> that doesn't work, please file a bug report in the issue tracker at
> https://github.com/jgm/pandoc/issues
>
>
> --
> Albert Krewinkel
> GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124
>
> --
> You received this message because you are subscribed to the Google Groups
> "pandoc-discuss" group.
> To unsubscribe from this group and stop receiving emails from it, send an
> email to pandoc-discuss+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/pandoc-discuss/87tty3yco7.fsf%40zeitkraut.de
> .
>

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Re: What happens when the -t option is different from the file extension after -o

[George Emad]

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Hello William, 
Thanks you for your reply, 

I can't share the whole output as it includes the whole document, but using 
the verbose option it proved my theory, 
that it do print the html file after generating it, thanks for the tip.

no obvious error messages and the here is the command passed to wkhtmltopdf 
``` wkhtmltopdf "--margin-bottom" "1.2in" "--margin-top" "1.25in" 
"--margin-right" "1.25in" "--margin-left" "1.25in" 
"--enable-local-file-access" "./html2pdf1272404-0.html" 
"./html2pdf1272404-1.pdf"
then the TOC in the html is like so 
 ``` 
<nav id="TOC" role="doc-toc">
<ul>
<li><a href="#introduction">Introduction</a>
<ul>
.
.
.
</ul></li>
</ul>
</nav>
``` 

then the reset of the pdf and the last couple of lines are 

```
Loading page (1/2)
Printing pages (2/2)                                               
Done                                                           
```

I am not sure if that enough for analysis, but I will also try to analyze 
it later, will go with weasyprint for now.

Regards, 
George 
On Wednesday, March 29, 2023 at 3:29:41 PM UTC+2 William Lupton wrote:

> George,
>
> If you set pandoc's --verbose flag then you get a lot of detailed output, 
> including the wkhtmltopdf command line and the generated HTML (that is 
> passed to wkhtmltopdf).
>
> If you'd be happy to share any or all of this output (or send it to me 
> directly), I'd be happy to take a look and see whether anything obvious is 
> going on.
>
> Cheers,
> William
>
> On Wed, 29 Mar 2023 at 13:17, Albert Krewinkel <albert...-9EawChwDxG8hFhg+JK9F0w@public.gmane.org> 
> wrote:
>
>> Hi George,
>>
>> George Emad <engr.ge...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>>
>> > 1) Is this a normal use case when I use different file extension than
>> > the format after -t ?
>>
>> Absolutely. Pandoc supports multiple PDF engines, and both the `-t` and
>> `--pdf-engine` parameters are taken into account when deciding which
>> format and which engine should be used. If the `--pdf-engine` parameter
>> is given, then pandoc uses that engine together with the appropriate
>> output format; if `-t`/`--to` is given then a engine is picket.
>>
>> Here's the list of formats and suitable engines:
>>
>>   - latex: pdflatex, lualatex, xelatex, latexmk, tectonic
>>   - html: wkhtmltopdf, weasyprint, pagedjs, prince
>>   - context: context
>>   - ms: pdfroff
>>   - typst: typst
>>
>> The first engine for each format is the default engine. So by using `-t`
>> you triggered PDF generation through wkhtmltopdf, which, it appears, is
>> installed on your system.
>>
>> > 2) How can I fix this bug with the TOC ?
>>
>> My recommendation would be to try one of the alternative engines. If
>> that doesn't work, please file a bug report in the issue tracker at
>> https://github.com/jgm/pandoc/issues
>>
>>
>> -- 
>> Albert Krewinkel
>> GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124
>>
>> -- 
>> You received this message because you are subscribed to the Google Groups 
>> "pandoc-discuss" group.
>> To unsubscribe from this group and stop receiving emails from it, send an 
>> email to pandoc-discus...-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>> To view this discussion on the web visit 
>> https://groups.google.com/d/msgid/pandoc-discuss/87tty3yco7.fsf%40zeitkraut.de
>> .
>>
>

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Re: What happens when the -t option is different from the file extension after -o

['William Lupton' via pandoc-discuss]

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Thanks. The one thing that confuses me is that you mentioned that the ToC
in the HTML includes things like this:

<li><a href="#introduction">Introduction</a>

This looks good (and is what I'd expect), but in your original message you
mentioned this:

<mypag.html#theSection>

Are you getting _both_ of these?

On Thu, 30 Mar 2023 at 09:23, George Emad <engr.georgeemad-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:

> Hello William,
> Thanks you for your reply,
>
> I can't share the whole output as it includes the whole document, but
> using the verbose option it proved my theory,
> that it do print the html file after generating it, thanks for the tip.
>
> no obvious error messages and the here is the command passed to
> wkhtmltopdf
> ``` wkhtmltopdf "--margin-bottom" "1.2in" "--margin-top" "1.25in"
> "--margin-right" "1.25in" "--margin-left" "1.25in"
> "--enable-local-file-access" "./html2pdf1272404-0.html"
> "./html2pdf1272404-1.pdf"
> then the TOC in the html is like so
>  ```
> <nav id="TOC" role="doc-toc">
> <ul>
> <li><a href="#introduction">Introduction</a>
> <ul>
> .
> .
> .
> </ul></li>
> </ul>
> </nav>
> ```
>
> then the reset of the pdf and the last couple of lines are
>
> ```
> Loading page (1/2)
> Printing pages (2/2)
> Done
> ```
>
> I am not sure if that enough for analysis, but I will also try to analyze
> it later, will go with weasyprint for now.
>
> Regards,
> George
> On Wednesday, March 29, 2023 at 3:29:41 PM UTC+2 William Lupton wrote:
>
>> George,
>>
>> If you set pandoc's --verbose flag then you get a lot of detailed output,
>> including the wkhtmltopdf command line and the generated HTML (that is
>> passed to wkhtmltopdf).
>>
>> If you'd be happy to share any or all of this output (or send it to me
>> directly), I'd be happy to take a look and see whether anything obvious is
>> going on.
>>
>> Cheers,
>> William
>>
>> On Wed, 29 Mar 2023 at 13:17, Albert Krewinkel <albert...-9EawChwDxG8hFhg+JK9F0w@public.gmane.org>
>> wrote:
>>
>>> Hi George,
>>>
>>> George Emad <engr.ge...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>>>
>>> > 1) Is this a normal use case when I use different file extension than
>>> > the format after -t ?
>>>
>>> Absolutely. Pandoc supports multiple PDF engines, and both the `-t` and
>>> `--pdf-engine` parameters are taken into account when deciding which
>>> format and which engine should be used. If the `--pdf-engine` parameter
>>> is given, then pandoc uses that engine together with the appropriate
>>> output format; if `-t`/`--to` is given then a engine is picket.
>>>
>>> Here's the list of formats and suitable engines:
>>>
>>>   - latex: pdflatex, lualatex, xelatex, latexmk, tectonic
>>>   - html: wkhtmltopdf, weasyprint, pagedjs, prince
>>>   - context: context
>>>   - ms: pdfroff
>>>   - typst: typst
>>>
>>> The first engine for each format is the default engine. So by using `-t`
>>> you triggered PDF generation through wkhtmltopdf, which, it appears, is
>>> installed on your system.
>>>
>>> > 2) How can I fix this bug with the TOC ?
>>>
>>> My recommendation would be to try one of the alternative engines. If
>>> that doesn't work, please file a bug report in the issue tracker at
>>> https://github.com/jgm/pandoc/issues
>>>
>>>
>>> --
>>> Albert Krewinkel
>>> GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124
>>>
>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "pandoc-discuss" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to pandoc-discus...-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org
>>> To view this discussion on the web visit
>>> https://groups.google.com/d/msgid/pandoc-discuss/87tty3yco7.fsf%40zeitkraut.de
>>> .
>>>
>> --
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> .
>

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Re: What happens when the -t option is different from the file extension after -o

[George Emad]

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Hello Albert, 

Thanks for your reply, trying weasyprint, solved the problem of the TOC, it 
introduced some other formatting differences, as I was adapting everything 
to wkhtmltopdf, 
Thanks for your suggestion will try to analyze the problem with wkhtmltopdf 
tho and open a issue on their repo instead of pandoc then. 

Regards, 
George.

On Wednesday, March 29, 2023 at 2:17:37 PM UTC+2 Albert Krewinkel wrote:

> Hi George,
>
> George Emad <engr.ge...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > 1) Is this a normal use case when I use different file extension than
> > the format after -t ?
>
> Absolutely. Pandoc supports multiple PDF engines, and both the `-t` and
> `--pdf-engine` parameters are taken into account when deciding which
> format and which engine should be used. If the `--pdf-engine` parameter
> is given, then pandoc uses that engine together with the appropriate
> output format; if `-t`/`--to` is given then a engine is picket.
>
> Here's the list of formats and suitable engines:
>
> - latex: pdflatex, lualatex, xelatex, latexmk, tectonic
> - html: wkhtmltopdf, weasyprint, pagedjs, prince
> - context: context
> - ms: pdfroff
> - typst: typst
>
> The first engine for each format is the default engine. So by using `-t`
> you triggered PDF generation through wkhtmltopdf, which, it appears, is
> installed on your system.
>
> > 2) How can I fix this bug with the TOC ?
>
> My recommendation would be to try one of the alternative engines. If
> that doesn't work, please file a bug report in the issue tracker at
> https://github.com/jgm/pandoc/issues
>
>
> -- 
> Albert Krewinkel
> GPG: 8eed e3e2 e8c5 6f18 81fe e836 388d c0b2 1f63 1124
>

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Re: What happens when the -t option is different from the file extension after -o

[Albert Krewinkel]

George Emad <engr.georgeemad-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> Thanks for your suggestion will try to analyze the problem with
> wkhtmltopdf tho and open a issue on their repo instead of pandoc
> then.

This appears to be a known issue:
https://github.com/wkhtmltopdf/wkhtmltopdf/issues/2153

The man page on Ubuntu also contains this:

> ## Reduced Functionality
>
> This version of wkhtmltopdf has been compiled against a version of QT
> without the wkhtmltopdf patches. Therefore some features are missing,
> if you need these features please use the static version.
>
> Currently the list of features only supported with patch QT includes:
>
>   [...]
>   * Adding links in the generated PDF file.

You could try to download an official binary from here:
https://github.com/wkhtmltopdf/packaging/releases/0.12.6-1


-- 
Albert Krewinkel
GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124

Re: What happens when the -t option is different from the file extension after -o

[George Emad]

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>You could try to download an official binary from here:
>https://github.com/wkhtmltopdf/packaging/releases/0.12.6-1

That actually worked, thanks ! 

On Thursday, March 30, 2023 at 11:22:51 AM UTC+2 Albert Krewinkel wrote:

>
> George Emad <engr.ge...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > Thanks for your suggestion will try to analyze the problem with
> > wkhtmltopdf tho and open a issue on their repo instead of pandoc
> > then.
>
> This appears to be a known issue:
> https://github.com/wkhtmltopdf/wkhtmltopdf/issues/2153
>
> The man page on Ubuntu also contains this:
>
> > ## Reduced Functionality
> >
> > This version of wkhtmltopdf has been compiled against a version of QT
> > without the wkhtmltopdf patches. Therefore some features are missing,
> > if you need these features please use the static version.
> >
> > Currently the list of features only supported with patch QT includes:
> >
> > [...]
> > * Adding links in the generated PDF file.
>
> You could try to download an official binary from here:
> https://github.com/wkhtmltopdf/packaging/releases/0.12.6-1
>
>
> -- 
> Albert Krewinkel
> GPG: 8eed e3e2 e8c5 6f18 81fe e836 388d c0b2 1f63 1124
>

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