I´m working on a webshop where you can personalize Glasses, Pens etc. with gravures...
We also want a "Preview" function like in this shop (click on "Vorschau"): https://www.geschenke-online.de/graviertes-whiskyglas-scotch-whiskey-drinker-mit-wunschname-und-geburtsjahr
They are generating the preview images through this link: https://hotrod-factory.com/cgi-bin/webproducer?motiv=pde-leo-k18-whg25.dtm&text_field1=Mytext%20&text_field2=2015&width=600
What is a .dtm file and how can I implement this feature on my website?
Thanks in advance!
They are using a custom program (a cgi script is like a program) called webproducer to render that preview. The .dtm extension is meaningless, those requests are being responded as images.