There is no picture problem when using tcpdf to generate pdf

It's generating pdf Used... When inserting pictures

$pdf->image Method to render , I found that the picture cannot be rendered , The solution is to use image Method used before

$pdf->AddPage();

But this will make the picture and text overlap , So later use html Tag to add pictures

$html_str.=' <img src="'.$base64_image_content.'" width="495" height="240" >';