Architecture Design of Highly Customized Document Generation Services in SaaS Systems Based on JACOB

Documents serve critical functions including information storage, work-efficiency enhancement, and collaborative innovation, playing an important role across various domains. In SaaS environments, efficient and flexible document generation services constitute not only the core of business processes but also a key instrument for enhancing competitiveness and driving business growth. Highly customized document generation services can effectively handle documents with high information density and diverse data representations, thereby improving data readability, operability, and flexibility. This paper completes the architectural design of highly customized document generation services in SaaS mode based on JACOB and the Spring Cloud microservices framework, achieving independent service scaling and elastic scaling, as well as data isolation and security guarantees. When generating identical content, the time difference between single-tenant document generation and multi-tenant concurrent document generation ranges from 0.69% to 4.7%, exhibiting nonlinear growth, though the performance degradation differential is not significant. When generating documents containing multiple images, document generation speed declines markedly, whereas for documents with fewer images, the character generation speed increases substantially.