Pdf visualiser embedded into wordpress website

You can put this in your theme functions.php file, It will work in any browser ( I tested this since it uses an iframe) and auto embed .pdf files from the media tab when you click “insert into post”.

You can alter the width and height parameters for the size when its added to the editor.

add_filter('media_send_to_editor', 'my_filter_pdf', 20, 3);

function my_filter_pdf($html, $id) {
    $attachment = get_post($id); //fetching attachment by $id passed through

    $mime_type = $attachment->post_mime_type; //getting the mime-type
    if ($mime_type == 'application/pdf') { //checking mime-type
        $src = wp_get_attachment_url( $id );

        $html="<iframe width="500" height="500" src="".$src.'"></iframe>';
        return $html; // return new $html    
    }
        return $html;
}

I made a plugin version here for you, create a php folder and inside that a .php file in your WordPress /plugins folder and paste this into it.
https://gist.github.com/2176359