Claude 在 2025 年如何读取 PDF 文件：工作流程、功能与限制
- Graziano Stefanelli
- Graziano Stefanelli
- Jun 13
- 6 月 13 日
- 6 min read
- 6 min read
The way we interact with complex documents is changing rapidly as artificial intelligence models mature, and Claude—Anthropic’s advanced conversational AI—stands at the forefront of this shift.
随着人工智能模型的成熟，我们与复杂文档的交互方式正在迅速改变，而Claude——Anthropic的先进对话式AI——正站在这场变革的最前沿。
In business, law, research, and many daily workflows, PDF files have become the universal standard for sharing contracts, reports, manuals, and even scanned physical documents. But the promise of truly understanding these files, beyond mere text extraction, has often been stymied by the very features that make PDFs powerful: their mix of images, rich layouts, embedded data, and variable formats.
在商业、法律、研究以及众多日常流程中，PDF文件已成为共享合同、报告、手册乃至扫描纸质文档的通用标准。然而，真正理解这些文件——而不仅仅是提取文本——的承诺，往往被PDF本身强大的特性所阻碍：图像、丰富版式、嵌入数据以及可变格式的混合。
Claude’s latest models (notably the Opus 4, Sonnet 4, and late-series Sonnet 3.x) approach this challenge with a mix of technical sophistication and practical utility that would have seemed almost implausible just a few years ago. Rather than treating a PDF as a simple stream of words, Claude analyzes these documents with a hybrid strategy that combines visual perception with advanced language reasoning—an approach that is quietly transforming how knowledge workers handle large and complex files.
Claude 的最新模型（尤其是 Opus 4、Sonnet 4 以及晚期的 Sonnet 3.x 系列）以技术复杂性与实用性的结合来应对这一挑战，这种结合在几年前几乎难以想象。Claude 不再把 PDF 视为简单的文字流，而是采用混合策略分析这些文档：将视觉感知与高级语言推理相结合——这种方法正在悄然改变知识工作者处理大型复杂文件的方式。
For much of the early 2020s, most language models—Claude included—struggled with anything more complicated than copying text out of a digital document. While text-based PDFs were relatively straightforward, any content with tables, graphs, scanned images, or non-standard fonts could lead to inaccuracies, dropped sections, or even total confusion. This all began to change as Anthropic introduced vision-capable models, starting in late 2024, rolling out to the public API and the claude.ai web interf...