Defaults

Below are the options that are available for this shortcode and their default values. A hash (#) indicates a required value.
'type' => 'small-1', // small-1, small-2, large, grid
'cats' => '', // Category IDs e.g. 54,32,12
'height' => '',
'per_page' => '9',
'orderby' => 'date', // date, title, rand
'order' => 'desc', // desc, asc
'excerpt_length' => '50', // 0 to disable
'title' => 'true', // true, false
'shadow' => 'none', // none, shadow-xs, shadow-s, shadow-m, shadow-l, shadow-xl
'reflection' => 'none', // none, reflection-s, reflection-m, reflection-l
'pagination' => 'true' // true, false,
'preload' => 'false' // false, true

And this is what you should insert into your posts and pages…
[portfolio type="small-1" cats="" height="" per_page="9" orderby="date" order="desc" excerpt_length="50" title="true" shadow="none" reflection="none" pagination="true" preload="false" /]