Category compare, not a lawsuit
Vs HTML-to-PDF
HTML-to-PDF vendors print whatever markup you send. Slipmill prints two locked documents from JSON. Different job.
If you typed HTML to packing slip, start on HTML to packing slip. That page owns the query. This page owns the category: an HTML-to-PDF mill versus a JSON packing-slip mill.
Choose the HTML-to-PDF category when you own the template, the CSS, and the regression suite. Choose Slipmill when you want the mill to own the layout so you stop designing the slip.
This is a category compare, not a lawsuit. The fork is: do you want to maintain HTML, or post JSON?
If you already have clean order JSON, POST it. If you have a beautiful custom HTML invoice, keep your HTML mill.
Questions
No. That query lives on /html-to-packing-slip. This page is the category compare. Slipmill prints from JSON.
When you own the markup, the CSS, and the regression suite. DocRaptor and PDFShift are that category. We are not.
Order JSON. template packing-slip or invoice. Header x-sm-key. US Letter application/pdf back.