Have same problem, thousands of entries in debug.log, more information about this bug is described e.g. here with this workaround:
Replace existing lines 4182 and 4183:
if (isset($this->CurrentFont['cw'][$char])) {
$w = $this->CurrentFont['cw'][$char];
with this:
if (isset($this->CurrentFont['cw'][intval($char)])) {
$w = $this->CurrentFont['cw'][intval($char)];
WordPress 2.6.2, WordPress 6.3.2, PHP 8.1.x
Note: Included TCPDF package in plugin is 6.4.1 (March 2021), current version TCPDF at GitHub is 6.6.5 (September 2023).
Same problem with Jobs for WordPress 2.7.1, WordPress 6.3.2, PHP 8.1.x
Please update TCPDF library, the issue is known there and fixed since version 6.4.2.
Same problem with Jobs for WordPress 2.7.3, WordPress 6.4.2, PHP 8.1.x
Same problem with Jobs for WordPress 2.7.4, WordPress 6.4.3, PHP 8.1.x
Please fix, this is very annoying and floods the debug.log a lot.
Same problem with Jobs for WordPress 2.7.5, WordPress 6.4.3, PHP 8.1.x
Same problem with Jobs for WordPress 2.7.7, WordPress 6.4.4, PHP 8.1.x
Please fix this soon, it causes over 100.000 entries in debug.log every few days.
