Developer Builds AI Tool to Convert PDF and DOCX Highlights Into Structured Study Notes

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A developer created an annotation-extraction app after realizing that months of heavy reading and highlighting left them unable to recall key material. The tool ingests highlighted PDF or DOCX files and pulls every highlight, underline, strikethrough, and comment into a single structured list organized by color and annotation type. An AI layer powered by Google Gemini then clusters the extracted highlights into themes and generates connected paragraph summaries, mimicking proper study notes. The app exports results in multiple formats including Markdown, Word, PDF, and Anki flashcards. It was built as a personal-use solution and submitted to the DEV Community Weekend Passion Challenge.

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