What is the problem of generating pdf?

Question

Yii

Site in yii2, pdf generated with kartik-v/yii2-mpdf .
Problems start when I try to insert an image.
do

<td style="background:  url(<?= Url::to('@front/uploads/stamp.jpg') ?>) no-repeat contain;">
        Место для штампа организации
</td>

and I get such a blue cloud;
if you remove no-repeat , it will be drawn normally, but it will cover the entire cell.
jpg/png tried.

Answer 1

This is not a widget bug, but a feature of mPDF rendering.
It has its own custom settings for background.
Here is the solution:
stackoverflow.com/questions/20828776/mpdf-full-pag...

Answer 2

background: url(<?= Url::to('@front/uploads/stamp.jpg') ?>) 0 0 no-repeat;