funstory-ai / BabelDOC

BabelDOC by funstory-ai is a specialized PDF translation toolkit designed specifically for research documents, offering high-quality bilingual alignment. Unlike basic translation tools that struggle with complex PDF layouts, BabelDOC preserves document structure while translating content via LLMs. It ships as both a Python API for seamless integration into existing document processing pipelines and a CLI, though the CLI is primarily intended for debugging rather than end-user workflows. The system leverages OpenAI-compatible APIs, giving developers the flexibility to plug in various LLMs based on their quality and cost requirements. This makes it a highly valuable asset for developers and researchers building automated academic or technical translation workflows. Users should be mindful of API costs when processing large volumes of research papers. Overall, it bridges the gap between raw LLM translation capabilities and practical document processing needs.