How to use pdf-tools (pdf-view-mode)

[rrandresf@xxxxxxxxx (=?utf-8?q?Andr=C3=A9s_Ram=C3=ADrez?=)]

Hi.

I am opening a pdf in w3m. By default it uses docview for viewing the
pdf.

I would like to use pdf-tools. I have found this link
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https://emacs.stackexchange.com/questions/19686/how-to-use-pdf-tools-pdf-view-mode-in-emacs
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I have got removing "application/pdf" from "w3m-doc-view-content-types".

But customizing "w3m-content-type-alist" does not seem an easy tasks.

¿Which one is the recommended way of getting viewing a pdf on pdf-tools
with w3m?

BR