Case study / Output verified
ClarityCheck
A live PDF trust scanner that finds invisible text, off-page content, tiny text, metadata issues, and prompt-injection style instructions before people or AI systems rely on the document.
Background / Architecture
What this system proves
01
Note
Built a deployed React and FastAPI app that lets users upload a PDF, review hidden-content findings, and download a sanitized version.
02
Note
Engineered detector modules for invisible text, off-page content, tiny text, low-contrast content, annotations, metadata, and zero-width characters.
03
Note
Added optional Gemini-powered semantic refinement to help distinguish harmless hidden content from AI prompt-injection traps.