This study investigates how beginning L2 learners of French engage with multimodal texts to design their own infographics, a critical 21st-century skill. Despite the growing importance of multimodal communication, L2 classrooms remain largely focused on traditional, text-based approaches. Grounded in socio-cultural and social semiotic theories, this research explores how learners apply their understanding of multimodality in creating infographics on sustainable development issues. The study draws on infographics, reflective essays, and interviews to analyze learners' use of semiotic resources and intersemiotic relationships. Findings indicate that tasks designed to encourage deep engagement with multimodal texts can significantly enhance L2 learners' communicative competence, preparing them for full participation in contemporary communication practices. This research contributes to the ongoing discussion on multimodality in L2 education and offers practical insights for educators aiming to integrate multimodal literacy into their classrooms.