The solution is to enable mPDF progress bars! inside /mpdf/config.php
$this->progressBar = 1;// Shows progress-bars whilst generating file 0 off, 1 simple, 2 advanced
Question
Is there anyway to display some text, indicating that the mPDF script is still working on generating the PDF?
I tried to do a simple Echo before i run the script, but it seems like it doesnt show, or mPDF clears it out or something.
Solution
The solution is to enable mPDF progress bars! inside /mpdf/config.php
$this->progressBar = 1;// Shows progress-bars whilst generating file 0 off, 1 simple, 2 advanced