folder vs pamphlet

folder and pamphlet both are nouns.

Word	Noun	Adjective	Verb	Adverb
folder	Yes	No	No	No
pamphlet	Yes	No	No	No

As nouns, folder and pamphlet are synonyms defined as:

Other synonyms of folder include booklet, brochure, leaflet.

folder (noun)	pamphlet (noun)
covering that is folded over to protect the contents	a brief treatise on a subject of interest; published in the form of a booklet
a small book usually having a paper cover	a small book usually having a paper cover