When standalone is not specified, pandoc typically outputs fragments rather than a complete document.  This is convenient for the case where you are processing multiple fragments into one document.  (This happens in HTML output but also in other output; groff -ms, ConTeXt, LaTeX.)  So normal HTML output I see when I don't specify standalone does not include the doctype.
$ echo '* Bogus' | pandoc -r rst -w html
<ul>
<li>Bogus</li>
</ul>
This is with pandoc 2.16.2, installed with homebrew.


On Tue, Dec 28, 2021 at 9:33 AM Joseph Reagle <joseph.2011@reagle.org> wrote:
The doctype declaration is a standard HTML feature and declares the version of the HTML. Pandoc, especially in `--standalone` mode includes these at the start of an HTML document.

I'm confused, however. You haven't specified standalone mode. (And why would you want them removed in any case?) And the behavior you are describing doesn't correspond to recent versions -- I'm using 2.16.2. I'm not sure when/if pandoc last used HTML4.01 strict.

In any case, you could create your own HTML template, without a doctype declaration.

https://pandoc.org/MANUAL.html#templates

On 21-12-27 15:04, philmac-97jfqw80gc6171pxa8y+qA@public.gmane.org wrote:
> I am using Pandoc to convert dumb quotes to smart quotes in HTML. The HTML is on my MacOS clipboard:
>
> pbpaste | pandoc -t html+smart | pbcopy
>
> The output begins with
>
> <!DOCTYPE html PUBLIC “-//W3C//DTD HTML 4.01//EN” “http://www.w3.org/TR/html4/strict.dtd”>
>
> and a blank line.
>
> Is it possible to turn this off?

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T. Kurt Bond, tkurtbond-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, https://tkurtbond.github.io

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