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Hi, I have module bankinvoice and it generate qr code for banks. I want to add QR code picture to PDF template in file invoicepdf.tpl I add all php code at the begin of file invoicepdf.tpl ... code .. code... $qrcode = base64_encode($contents); in callback php file i use this string to show it <img style="width: 35mm; height: 35mm;" src="data:image/png;base64, <? echo $qrcode; ?>" /> and it show qr code. Return to file invoicepdf.tpl I try this $pdf->writeHTML($qrcode, true, false, false, false, ''); and it show content in base64 result: BxCry.. ...sria7= It's tell me that inserted code work good and i try to show it as image $paymethhtml = ' <img style="width: 35mm; height: 35mm;" src="data:image/png;base64, '.$qrcode.' />'; $pdf->writeHTML($paymethhtml, true, false, false, false, ''); but it not add QR (PDF generated as base, i think that i make something wrong. Please help to execute this string: <img style="width: 35mm; height: 35mm;" src="data:image/png;base64, <? echo $qrcode; ?>" /> in file invoicepdf.tpl correctly to show QR in PDF.