We are starting the week with the release of a long awaited feature, which is a must for all those publishers who are working with PDF files. Until now adding and replacing PDF pages was a
Vitamin D
Vitamin D is a group of fat-soluble secosteroids, the two major physiologically relevant forms of which are vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol). Vitamin D without a subscript refers to either D2 or D3 or both. Vitamin D3 is produced in the skin of vertebrates after exposure to show more...
