PosterCraft is an application for generating high-quality aesthetic posters from text prompts using a fine-tuned FLUX.1 model. The system consists of three main components: a prompt enhancement module (QwenRecapAgent) that rewrites user prompts for better detail, an image generation module (PosterGenerator) that uses a custom FLUX transformer to create posters, and a Gradio web interface for interactive use. The application supports CPU offloading for low-memory GPUs and demonstrates modular design with clear separation between prompt processing and image generation. Key entry points include inference.py (command-line generation), inference_offload.py (memory-efficient generation), and demo_gradio.py (web UI).