A technical look at how PDF character encoding, glyph positioning, and font subsetting combine to make manual copy-pasting an unreliable way to get text out of a document.
Hyphen splits and hard line breaks quietly degrade tokenization and retrieval quality. Here is why data cleaning is a real preprocessing step, not an afterthought.
A breakdown of how ATS parsers actually read a resume, why multi-column layouts fail, and how cleaning your extracted text catches problems before a recruiter ever sees them.
Why broken line breaks and hyphen splits can distort similarity scores in academic document checkers, and how to clean a paper's extracted text before submission.