Generating labels on top of a form?

Question

Image processing

How to organize the generation of labels according to the basic template? Those. there is a label form in jpeg and on top of it, above the corresponding fields (it's not clear how), you need to insert the values ​​​​from the order (it's clear how). And then save the picture under the order number? Maybe there are some less sophisticated ways ... In general, it is necessary that after scanning the order number (there will already be a label with the number on the shipment), the system generates a "full-fledged" label and sends it to the label printer for printing via wifi.

Answer 1

There are a huge number of guides for imposing "watermarks" on the image .
In essence, you need the same thing:
1. Load a background
2. generate a picture with captions
3. overlay captions on top of the background