The Swedish preschool curriculum not only prescribes documentation and quality assessment, it also requires children’s participation in the documentation process, although it offers no directions on how the documenting should be done, which can leave teachers unsure of how to do it. This study differs from research that presents pedagogical documentation as a way of enabling children’s participation in preschool in that it explores children’s participation in producing different forms of documentation in a Swedish preschool – and it finds that such participation is complex. The findings imply that, whether documentation is activity-integrated or retrospective, different forms of participation are possible.