Over 80% of industrial workers spend more than half of their workday standing, increasing the risk of plantar discomfort and fatigue. This study evaluates the effectiveness of a passive lower-limb exoskeleton in reducing plantar pressure distribution (PPD) during static tasks. A pressure measurement system based on a 32 × 32 force-sensitive resistor (FSR) matrix insole was used to assess real-time pressure distribution in four male participants under two conditions: with and without the exoskeleton. The experimental protocol involved a simulated drilling task performed while standing, with data collected from critical plantar regions. All the tests were performed with participants barefoot, wearing socks. Previous studies have explored ergonomic footwear and cushioned flooring as passive interventions to reduce PPD; however, these solutions often lack of adaptability and mechanical support. Most previous studies have focused only on walking cycles or used insoles with low resolution, which do not effectively capture pressure across the entire foot. Results showed significant reductions in peak plantar pressures with the use of the exoskeleton. Specifically, metatarsal pressure decreased by approximately 4–5 times, while heel pressure was reduced up to 10 times compared to the unassisted condition.