Doclingo

Doclingo is an AI-based document translation platform that accepts PDF, Word, ePub and other files, automatically translates them while retaining the original layout—including tables, formulas, and text within images. It works on PC, web, and mobile; users simply upload a file, choose the target language, and receive a fully translated document with high-fidelity formatting. Advantages: Complete translation with no omissions, excellent layout preservation, and support for image-text translation. Batch processing is supported to boost efficiency. The service is currently claimed to be permanently free, allowing zero-cost access to core translation features. Limitations: The export format alternates between source and target pages rather than offering a side‑by‑side view, which can be inconvenient for users who need to compare sentences precisely. Support for less common languages is not as broad as in major translation services, and occasional inconsistency in terminology may occur. Ideal for: Students, researchers, and technical professionals who need to quickly read foreign academic papers, textbooks, or technical documents.