Funstory-ai is an open source PDF scientific and technical papers translation and bilingual comparison tool library (based on yadt open source library) of the official documents and guidelines site, the core focus on solving the scientific and technical PDF translation in the format of the messy, formulas / terminology processing is not good, the difficulty of adapting to the multi-terminal and other pain points, to provide high-fidelity PDF translation capabilities for researchers, students, developers, support for online use, local deployment, embedded development of three modes. It supports three modes: online use, local deployment, and embedded development, and focuses on preserving the original document layout structure while realizing accurate bilingual translation, which is an AI translation solution specially designed for scientific and technological literature.