If you have received this error message, it appears that your artwork has not been set up correctly within our folding guides for trifold brochures.
Templates with folding guides are available for download on our website: https://www.jukeboxprint.com/brochures
The panel size guides for trifold brochure are as follows:
| Left Panel | Centre Panel | Right Panel | |
| Outside Page | 3.6354" | 3.6667" (back) | 3.6979" (front) |
| Inside Page | 3.6979" | 3.6667" | 3.6354" |