This is the actual law (Brottsbalken 16:10a)
https://www.riksdagen.se/sv/dokument-och-lagar/dokument/sven...
A person who
1. depicts a child in a pornographic image,
2. disseminates, transfers, provides, exhibits, or otherwise makes such an image of a child available to another person,
3. acquires or offers such an image of a child,
4. facilitates contacts between buyers and sellers of such images of children or takes any other similar measure intended to promote trade in such images, or
5. possesses such an image of a child or views such an image to which he or she has gained access
shall be sentenced for a child pornography offense to imprisonment for at most two years.
Then there's Proposition 2009/10:70, which is a clarifying document on how the law should be interpreted:
https://www.riksdagen.se/sv/dokument-och-lagar/dokument/prop...
Let me quote (translated):
"To depict a child in a pornographic image entails the production of such an image of a child. An image can be produced in various ways, e.g., by photographing, filming, or drawing a real child. Through various techniques, more or less artificial images can also be created. For criminal liability, it is not required that the image depicts a real child; images of fictitious children are also covered. New productions can also be created by reproducing or manipulating already existing depictions, for example, by editing film sequences together in a different order or by splicing an image of a child’s head onto an image of another child’s body."