Artwork does not have to be perfect. Most UK orders start with a school crest PDF, a club badge photographed on an old shirt, or a JPG pulled off a website. A digitiser rebuilds it either way.
What matters more is the detail around the artwork: the garment, the finished size in millimetres, and the machine format you run. Those three decide density, underlay and how much detail survives.
If the artwork will not carry at the size you need, we say so before starting, and suggest what to simplify. Our artwork requirements guide covers what to send.