Core Viewpoint - The article discusses the evaluation of AI translation tools in handling complex document formats, particularly focusing on their performance in translating financial reports, research papers, and academic articles. It highlights the challenges faced by AI in maintaining structural integrity, terminology accuracy, and readability when translating scanned documents and PDFs. Group 1: Evaluation of AI Translation Tools - A systematic evaluation was conducted on 14 mainstream AI translation tools, assessing their performance across three dimensions: translation accuracy, formatting aesthetics, and language coherence [7][9]. - The selected document types for evaluation include research reports, financial reports, and academic papers, which represent high-value scenarios in business, finance, and research [8][16]. - The results revealed that some tools excelled in format preservation but struggled with terminology accuracy, while others demonstrated a better understanding of semantics but compromised on formatting [9][24]. Group 2: Performance Metrics - The evaluation metrics included translation accuracy, formatting aesthetics, and language coherence, with specific scores assigned to each tool based on their performance [23][44]. - Tools like SimplifyAI, Doubao, and Transmart showed balanced performance in terminology handling, data matching, and text logic, indicating a certain level of professional usability [24][49]. - DeepL and Kimi performed adequately, though they occasionally exhibited issues with clarity and sentence structure [44][50]. Group 3: Recommendations for Use - For financial reports, tools that excel in table reproduction and numerical accuracy, such as Tiangong, Immersive Translation, and DeepSeek, are recommended [50]. - For academic translations requiring semantic and stylistic precision, ChatGPT and Minimax are suggested as preferred options [50]. - The article emphasizes the importance of maintaining formatting integrity and effective paragraph handling in PDF translations to enhance overall translation accuracy [50].