TCPDF - Header image only displays on first page - tcpdf

Question

I am using TCPDF to generate a 2 page pdf document.
I have added a header and a footer to the document. The text part of the header and footer shows up correctly on each page however when I include an image logo in the header it is only showing up on the first page.
public function Header()
{
$this->Image('/home/xxxxxx/public_html/xxxxxxxx/uploads/logo/logo.png',10,6,0,13);
$this->SetFont('helvetica','B',20);
$this->Cell(80);
$this->Cell(0,0, $project->name . ' - Project Plan',$frame,0,'R');
$this->Ln(8);
$this->SetFont('helvetica','',10);
$this->Cell(0,0, $organisation->name,$frame,0,'R');
$this->Ln(10);
}
Does anyone have any idea what I am doing wrong here?
Thanks

Answer 1

I think is not related to header/footer, but I think TCPDF has bug that broken Image function with same image file loaded multiple times as reported here TCPDF - image displayed only once
bug also present on actual version tecnickcom/tcpdf:6.2.26
I resolve this problem by loading image outside and pass to the function as string.
public function Header()
{
$this->Image('#'.file_get_contents('/home/xxxxxx/public_html/xxxxxxxx/uploads/logo/logo.png'),10,6,0,13);
$this->SetFont('helvetica','B',20);
$this->Cell(80);
$this->Cell(0,0, $project->name . ' - Project Plan',$frame,0,'R');
$this->Ln(8);
$this->SetFont('helvetica','',10);
$this->Cell(0,0, $organisation->name,$frame,0,'R');
$this->Ln(10);
}

Answer 2

As said it is a tcpdf bug. In my case I had two logos in header one png and the other jpg. The problem happened only with the .png. Changing the image type from png to jpg solved the issue.

Answer 3

I solved this by using base64 encoded string like this:
$image = base64_encode(file_get_contents('path_to_image'));
Then you can use it like this:
<img src="#<?= $image ?>" />