You've written a technical document and want to include some diagrams—architecture diagrams, flowcharts, comparison charts—but drawing them yourself is time-consuming and laborious, and hastily generated AI diagrams often suffer from inconsistent style, mismatched icons, and overuse of colors. Tech Doc Illustrator solves this problem: 1. Automatically analyzes the document, identifying where to add images and what type of images to use. 2. Five-fold prompt optimization, with mandatory checks before each image generation: accurate logical structure, correct icon semantics, restrained colors, precise lines, and no redundant elements. 3. Three preset color schemes, ready to use out of the box, or you can replace them with your own brand colors. 4. Outputs the original text unchanged, only inserting images in the corresponding paragraphs to generate a complete new document. 5. No language or document format restrictions.