The PDF is a flat A3-size sheet (420 × 297 mm) with a centre-fold guide for an A4 finished bi-fold brochure. Use it as a 4-panel brochure template: Panel 4 (back) and Panel 1 (cover) on the outside, Panel 2 and Panel 3 on the inside.
How to use the bifold brochure template
Download the PDF
Open it in Illustrator, InDesign, Affinity or a similar layout tool.
Keep the bleed
Extend background colour and images 3 mm past trim. Keep type 5 mm inside the trim.
Export print-ready
CMYK, 300 DPI images, fonts outlined or embedded, then upload on the product page.