/**************************PDF style*************************************/

.embed-responsive-aviso {
    position: relative;
    display: block;
    height: 0;
    padding: 0;
    overflow: hidden;
}

.embed-responsive object{
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 100%;
    height: 94%;
    border: 0;
    transform: translate(-50%, 6%);
    -webkit-transform: translate(-50%, 6%);
}

.margin-aviso{
    padding-top: 10%;
}

/***************end style************************/

<!---HTML PDF-->

<section class="margin-aviso">
    <div class="container">
        <div class="row">
            <div class='embed-responsive' style='padding-bottom:150%'>
                <object data='DIRECCIÓN-URL-DE-PDF' type='application/pdf' width='100%' height='100%'></object>
            </div>
        </div>
    </div>
</section>


<!--END HTML PDF-->