Methods, devices, apparatus, and assemblies for converting fanfold material into packaging templates are disclosed. A converting system includes a converting machine that performs various conversion functions on the fanfold material. An infeed guide system directs the fanfold material from one or more stacks into the converting machine without folding, creasing, or otherwise compromising the fanfold material. The infeed guide system includes infeed guides with substantially S-shaped segments. The infeed guide system also includes a frame structure that substantially maintains the curvature of the substantially S-shaped segments within a desired range to prevent damage to or jamming of the fanfold material in the infeed guide system.