{input-encodings} is about the various input code pages like latin1 or utf-8 ({unicode}) which interpret the sequence of numbers underlying text files and map each number to a certain glyph (character). A popular package for pdfLaTeX is inputenc.

is about the various input code pages like latin1 or utf-8 () which interpret the sequence of numbers underlying text files and map each number to a certain glyph (character). A popular package for pdfLaTeX is inputenc.