Many institutional application portals—including government visa servers, public employment boards, military recruitment systems, and university admissions databases—enforce hard 100KB file upload ceilings to manage database storage constraints. The 100KB optimizer utilizes an iterative binary search pass that dynamically adjusts raster DPI, chroma subsampling, and JPEG quantization parameters until the resulting document byte array is guaranteed to remain strictly under 102,400 bytes. Perfect for compressing scanned passports, educational mark sheets, government identity cards, and tax certificates for portal submission.