In a contract or agreement, the fine print is the same as the small print.
fine print in British English
noun
matter set in small type, as in a contract, esp considered as containing unfavourable conditions that the signer might overlook
Also called: small print
fine print in American English
1.
a section of a document, as a contract, warranty, or advertisement, in smaller print than the main body: although it includes additional conditions, limits, etc., this section may not be read carefully because it is typically terse or in legalese
2.
any additional details, conditions, etc. regarded as obscure or, often, deliberately obscure