How are these pdf's done ?

I was looking at the webpage for imgmodels and every model has a print option. Here you have several options for printing pdf's with single photos, 2 per page, 4 per page, etc. How is this done ? I'm thinking automated, but how ?

Davidoff wrote in post #11409472
I was looking at the webpage for imgmodels and every model has a print option. Here you have several options for printing pdf's with single photos, 2 per page, 4 per page, etc. How is this done ? I'm thinking automated, but how ?

Youre not selecting the images, that has already been done beforehand, at least on the ones I checked. Looks like a simple matter of simply selecting a pre-formatted pdf to print.

Yes, absolutely, but how were they originally generated ? I don't think they created the pdf's one by one, by hand

some of the programs can print to PDF's, and give you various format options. ACDsee pro can I know, LR ?