Ability to use A4 pdf in invoice

When emailing and downloading invoice pdf the format A4 is not aligned correctly.

The paper standard A4 is used most of the world.

When selecting printing the invoice the alignment is correct.

https://drive.google.com/file/d/1zlNeC7UWK2oJ_esxqWEXMFhz0plF7tCj/view?usp=sharing

http://www.all-size-paper.com/A4/a4-paper-size.php

We use DomPDF library for PDF creation and its default setting is A4:

https://github.com/barryvdh/laravel-dompdf/blob/master/config/dompdf.php#L138

Hey, it's been a while since last post. I have an issue with generated PDF that customers get via email or download link. Layout of PDF file is floating left. How it can be fixed ?