Doclingo.ai is a powerful 2026 AI document translation platform specializing in high-fidelity translation of PDFs, Word, Excel, PPT, and images while perfectly preserving original layouts. Supporting 90+ languages, it offers one-click instant translation, smart OCR for images, multi-AI engine switching (DeepSeek, ChatGPT, Gemini, Claude, Qwen), intelligent dialogue, highlight-to-translate, online editing, and self-developed layout recovery algorithms. 100% free with no sign-up required—ideal for professionals, researchers, enterprises handling academic papers, technical docs, and multilingual content.