What technology stack can be applied to online label printing?

Question

Seal

We plan to implement a service, one of the subsystems of which is printing labels and other materials from pdf files available via links.
The following structure is seen: the printer is connected, for example, to Ubuntu. A web service, for example in php (for example, laravel) accesses Ubuntu and sends a print command, passing a pdf file, a link to it, or something else. The printer is printing. Those. the user does not interact with the printing interfaces, he performs, for example, a logistics or warehouse procedure, and printing a label is an accompanying action that the web service performs itself.
Question: what solutions, libraries, etc. can be used to implement this task, what will be the pitfalls. PS: Appreciate the response from members who have done something similar before.