title: I cannot include an image in a TCPDF header
body: <p>To create a custom header and footer, I used TCPDF's <code>header()</code> and <code>footer()</code> functions, but when I try to include an image in the header using the function <code>$this-&gt;image()</code>, the image cannot be displayed. Other images in the document are working fine.</p>