Image Lib options

Please use cliOptions key to set any the of the image settings available

{%  set settings = {
        filename: 'my-first-image.png',
        asImage: true,
        cliOptions: {
            'transparent': null,
            'quality': 80
        }
    }
%}

{{ craft.enupalsnapshot.displayHtml("<h1>Hola mundo</h1>", settings) }}

Available settings

Option	Values	what?
checkbox-checked-svg	path	Use this SVG file when rendering checked checkboxes
checkbox-svg	path	Use this SVG file when rendering unchecked checkboxes
cookie	name value	Set an additional cookie (repeatable)
cookie-jar	path	Read and write cookies from and to the supplied cookie jar file
crop-h	int	Set height for croping
crop-w	int	Set width for croping
crop-x	int	Set x coordinate for croping
crop-y	int	Set y coordinate for croping
custom-header	name value	Set an additional HTTP header (repeatable)
custom-header-propagation		Add HTTP headers specified by custom-header for each resource request.
no-custom-header-propagation		Do not add HTTP headers specified by custom-header for each resource request.
debug-javascript		Show javascript debugging output
no-debug-javascript		Do not show javascript debugging output (default)
encoding	encoding	Set the default text encoding, for input
extended-help		Display more extensive help, detailing less common command switches
format	format	Output file format (default is jpg)
height	int	Set screen height (default is calculated from page content) (default 0)
help		Display help
htmldoc		Output program html help
images		Do load or print images (default)
no-images		Do not load or print images
disable-javascript		Do not allow web pages to run javascript
enable-javascript		Do allow web pages to run javascript (default)
javascript-delay	msec	Wait some milliseconds for javascript finish (default 200)
load-error-handling	handler	Specify how to handle pages that fail to load: abort, ignore or skip (default abort)
disable-local-file-access		Do not allowed conversion of a local file to read in other local files, unless explecitily allowed with allow
enable-local-file-access		Allowed conversion of a local file to read in other local files. (default)
manpage		Output program man page
minimum-font-size	int	Minimum font size
password	password	HTTP Authentication password
disable-plugins		Disable installed plugins (default)
enable-plugins		Enable installed plugins (plugins will likely not work)
post	name value	Add an additional post field (repeatable)
post-file	name path	Post an additional file (repeatable)
proxy	proxy	Use a proxy
quality	int	Output image quality (between 0 and 100) (default 94)
radiobutton-checked-svg	path	Use this SVG file when rendering checked radiobuttons
radiobutton-svg	path	Use this SVG file when rendering unchecked radiobuttons
readme		Output program readme
run-script	js	Run this additional javascript after the page is done loading (repeatable)
disable-smart-width*		Use the specified width even if it is not large enough for the content
stop-slow-scripts		Stop slow running javascripts (default)
no-stop-slow-scripts		Do not Stop slow running javascripts (default)
transparent*		Make the background transparent in pngs
user-style-sheet	url	Specify a user style sheet, to load with every page
username	username	HTTP Authentication username
version		Output version information an exit
width	int	Set screen width (default is 1024) (default 1024)
window-status	windowStatus	Wait until window.status is equal to this string before rendering page
zoom	float	Use this zoom factor (default 1)