Font and typeface

Font - a font is one style type face. it usually has its own height, weight and spacing between the letters

Type face - a type face is a font family for example wingdings has several different number versions of it.

Style - each font has its own variables to make it unique and you can also add your own in depending on what you are writing about for example if you make the text italic you are adding a new style to the text.

Didot - a didot is a family of French printers who created a new technique of typography that has
helped printers world wide for decades.

Serif - serif is a small line attach to the stroke on the end of the letter

Sans serif - sans serif is different to serif because it doesn't have the stroke on the letters so its just
normal text

Compatibility - you can a have compatibility issues when creating things in a pdf because if you open it over a range of different computers that aren't that new they might have issues seeing some modern fonts

Size - size does matter because if you want to open it on a tablet or something smaller than a computer it might not be visible if you make it small on the computer

Leading - The term leading is derived from the days of hot metal type when the strips of lead were placed between the lines to create spacing. leading is basically the space between the pieces of type

Kerning - kerning is the space between each letter in the word, without kerning the word wouldn't be readable because all the letters would be clumped together

Justification - Justification is the alignment of text along the margin

Condensed fonts / extended fonts - condensed font are fonts with really narrow type, extended fonts are the opposite, they are fonts with a wide type.