
$reports = array(
    "/public/Samples/Reports/07g.RevenueDetailReport",
    "/public/Samples/Reports/5g.AccountsReport",
    "/public/Samples/Reports/06g.ProfitDetailReport"
);

$thumbnails = $c->thumbnailService()->getResourceThumbnails($reports);

foreach ($thumbnails as $t) {
    echo "<h2>" . $t->uri . "</h2><br>";
    echo "<img src='data:image/jpeg;base64," . $t->thumbnailData . "'><br>";
}