RYUN Engineering & Research
Blog & Engineering Notes
Things we built, measured, or got wrong. Written by the developer, dated, and updated in place when code or benchmarks change.
Articles (1)
#Unicode·8 min
Why ATS PDF Parsers Break on Hyphens and Em-Dashes (and Drop Minus Signs in Equity Models)
Word processors silently convert standard ASCII hyphens into Unicode en-dashes and em-dashes. Here is how that corrupts date parsing in legacy ATS pipelines, drops negative numbers in equity models, and how to verify your PDF in five seconds.
Oct 11, 2026Read