tcpdf center text not fully in center - php

Question

I am trying to center the footer text
function Footer(){
$txt = 'Page %s of %s';
if (empty($this->pagegroups)) {
$txt = sprintf($txt, $this->getAliasNumPage(), $this->getAliasNbPages());
} else {
$txt = sprintf($txt, $this->getPageNumGroupAlias(), $this->getPageGroupAlias());
}
$this->MultiCell(0, 0, $txt, 1, 'C', false, 1, PDF_MARGIN_LEFT, $this->y);
}
As you can see in the image the cell is getting positioned correctly, the problem is with centering the text.
I get the same result if I change the MultiCell to something more straight forward:
$this->SetXY(PDF_MARGIN_LEFT, $this->y);
$this->Cell(0, 0, $txt, 1, 1, 'C');

Answer 1

Somehow getAliasNumPage() and getPageNumGroupAlias() add a bunch of whitespace to the right. I am unsure why. But I know that using PageNo() and getGroupPageNo() instead will fix it.
This is the code that worked for me:
public function Footer() {
$this->SetY(-15); //not present in your code but was necessary for me to have the footer be positioned correctly
$txt = 'Page %s of %s';
if (empty($this->pagegroups)) {
$txt = sprintf($txt, $this->PageNo(), $this->getAliasNbPages());
} else {
$txt = sprintf($txt, $this->getGroupPageNo(), $this->getPageGroupAlias());
}
$this->MultiCell(0, 0, $txt, 1, 'C', false, 1);
}
}