any way to set max size of images when converting to pdf

any way to set max size of images when converting to pdf

[koi]

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i generally convert md to pdf and add screenshots to md files which comes 
out to be soo big in rendered pdf is there any way or hack so that i could 
specify some thing in header.tex file etc so that sizes of all images get 
limited by a specified limit
yes i know about ![](img.png){width=50%) thing but it is not desireable as 
it cause issues with other markdown viewers

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Re: any way to set max size of images when converting to pdf

[John MacFarlane]

The default LaTeX template already contains this code
which limits images to page width:

% Scale images if necessary, so that they will not overflow the page
% margins by default, and it is still possible to overwrite the defaults
% using explicit options in \includegraphics[width, height, ...]{}
\setkeys{Gin}{width=\maxwidth,height=\maxheight,keepaspectratio}

You could perhaps use this approach with, say, 3in instead of
\maxwidth?

koi <aneeqasifscent-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> i generally convert md to pdf and add screenshots to md files which comes 
> out to be soo big in rendered pdf is there any way or hack so that i could 
> specify some thing in header.tex file etc so that sizes of all images get 
> limited by a specified limit
> yes i know about ![](img.png){width=50%) thing but it is not desireable as 
> it cause issues with other markdown viewers
>
> -- 
> 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/d2c311eb-430f-46a3-a332-0e8ff3bef555n%40googlegroups.com.

Re: any way to set max size of images when converting to pdf

[koi]

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thanks Jhon for kind help 
I tried this but i am getting following error

*command*:  pandoc -H head.tex -s  --toc -V geometry:"left=3cm, right=3cm" 
Intro.md -o out.pdf 


Error producing PDF.
! Undefined control sequence.
\Gin@@ewidth ->\1
                 00
l.97 ...926ccfb5cf22660c94dd1053318fe9b4f5ea7.png}

On Thursday, 3 February 2022 at 5:34:12 am UTC+5 John MacFarlane wrote:

>
> The default LaTeX template already contains this code
> which limits images to page width:
>
> % Scale images if necessary, so that they will not overflow the page
> % margins by default, and it is still possible to overwrite the defaults
> % using explicit options in \includegraphics[width, height, ...]{}
> \setkeys{Gin}{width=\maxwidth,height=\maxheight,keepaspectratio}
>
> You could perhaps use this approach with, say, 3in instead of
> \maxwidth?
>
> koi <aneeqas...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > i generally convert md to pdf and add screenshots to md files which 
> comes 
> > out to be soo big in rendered pdf is there any way or hack so that i 
> could 
> > specify some thing in header.tex file etc so that sizes of all images 
> get 
> > limited by a specified limit
> > yes i know about ![](img.png){width=50%) thing but it is not desireable 
> as 
> > it cause issues with other markdown viewers
> >
> > -- 
> > 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/d2c311eb-430f-46a3-a332-0e8ff3bef555n%40googlegroups.com
> .
>

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Re: any way to set max size of images when converting to pdf

[koi]

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i am using 
\setkeys{Gin}{width=\2in,height=\2in,keepaspectratio} 

in heat.tex file and getting error as i mentioned

On Thursday, 3 February 2022 at 5:34:12 am UTC+5 John MacFarlane wrote:

>
> The default LaTeX template already contains this code
> which limits images to page width:
>
> % Scale images if necessary, so that they will not overflow the page
> % margins by default, and it is still possible to overwrite the defaults
> % using explicit options in \includegraphics[width, height, ...]{}
> \setkeys{Gin}{width=\maxwidth,height=\maxheight,keepaspectratio}
>
> You could perhaps use this approach with, say, 3in instead of
> \maxwidth?
>
> koi <aneeqas...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > i generally convert md to pdf and add screenshots to md files which 
> comes 
> > out to be soo big in rendered pdf is there any way or hack so that i 
> could 
> > specify some thing in header.tex file etc so that sizes of all images 
> get 
> > limited by a specified limit
> > yes i know about ![](img.png){width=50%) thing but it is not desireable 
> as 
> > it cause issues with other markdown viewers
> >
> > -- 
> > 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/d2c311eb-430f-46a3-a332-0e8ff3bef555n%40googlegroups.com
> .
>

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Re: any way to set max size of images when converting to pdf

[koi]

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i just basically want to impliment  this
![test image](test.jpg){width=90%}   <-------

without doing this in markdown file but instead defining some settings in 
some other file and using it with pandoc while compiling md to pdf

On Thursday, 3 February 2022 at 5:34:12 am UTC+5 John MacFarlane wrote:

>
> The default LaTeX template already contains this code
> which limits images to page width:
>
> % Scale images if necessary, so that they will not overflow the page
> % margins by default, and it is still possible to overwrite the defaults
> % using explicit options in \includegraphics[width, height, ...]{}
> \setkeys{Gin}{width=\maxwidth,height=\maxheight,keepaspectratio}
>
> You could perhaps use this approach with, say, 3in instead of
> \maxwidth?
>
> koi <aneeqas...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > i generally convert md to pdf and add screenshots to md files which 
> comes 
> > out to be soo big in rendered pdf is there any way or hack so that i 
> could 
> > specify some thing in header.tex file etc so that sizes of all images 
> get 
> > limited by a specified limit
> > yes i know about ![](img.png){width=50%) thing but it is not desireable 
> as 
> > it cause issues with other markdown viewers
> >
> > -- 
> > 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/d2c311eb-430f-46a3-a332-0e8ff3bef555n%40googlegroups.com
> .
>

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Re: any way to set max size of images when converting to pdf

[Albert Krewinkel]

koi <aneeqasifscent-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

> i just basically want to impliment  this
>
> ![test image](test.jpg){width=90%}   <-------
>
> without doing this in markdown file but instead defining some settings
> in some other file and using it with pandoc while compiling md to pdf

Lua filters lend themselves to this. Put the following code into a file
and pass that file to pandoc via a `--lua-filter` command line
parameter.

``` lua
function Image (img)
  img.attributes.width = img.attributes.width or '90%'
  return img
end
```

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

Re: any way to set max size of images when converting to pdf

[John MacFarlane]

you want width=2in not =\2in
and similarly for height.

Re: any way to set max size of images when converting to pdf

[koi]

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is there any similar way to center all images to page by using any -H 
header file of lua filter ?

On Thursday, 3 February 2022 at 9:29:35 pm UTC+5 John MacFarlane wrote:

>
> you want width=2in not =\2in
> and similarly for height.
>

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