postscript

As nouns the difference between preface and postscript

is that preface is the beginning or introductory portion that comes before the main text of a document or book while postscript is an addendum to a letter, added after the author’s signature.

As verbs the difference between preface and postscript

is that preface is to introduce or make a comment before (the main point) while postscript is to extend (a letter or another document) with additional remarks.

In countable terms the difference between postscript and pdf

is that postscript is an addition to a story, play, etc while pdf is a document in this format.

As a proper noun PDF is

Parkinson's Disease Foundation

As verbs the difference between append and postscript

is that append is to hang or attach to, as by a string, so that the thing is suspended; as, a seal appended to a record; the inscription was appended to the column while postscript is to extend (a letter or another document) with additional remarks.

As nouns the difference between append and postscript

is that append is (computing) an instance of writing more data to the end of an existing file while postscript is (countable) an addendum to a letter, added after the author’s signature.

As nouns the difference between appendix and postscript

is that appendix is something attached to something else; an attachment or accompaniment while postscript is an addendum to a letter, added after the author’s signature.

As a verb postscript is

to extend (a letter or another document) with additional remarks.

As nouns the difference between codicil and postscript

is that codicil is (legal) an addition or supplement that explains, modifies, or revokes a will or part of one while postscript is (countable) an addendum to a letter, added after the author’s signature.

As a verb postscript is

to extend (a letter or another document) with additional remarks.

As nouns the difference between addition and postscript

is that addition is addition while postscript is (countable) an addendum to a letter, added after the author’s signature.

As a verb postscript is

to extend (a letter or another document) with additional remarks.

As nouns the difference between postscript and afterthought

is that postscript is (countable) an addendum to a letter, added after the author’s signature while afterthought is a reflection after an act; a later or subsequent thought, action, or expedient.

As verbs the difference between postscript and afterthought

is that postscript is to extend (a letter or another document) with additional remarks while afterthought is to expound as an afterthought.

As nouns the difference between supplement and postscript

is that supplement is supplement while postscript is (countable) an addendum to a letter, added after the author’s signature.

As a verb postscript is

to extend (a letter or another document) with additional remarks.

As nouns the difference between postscript and appendage

is that postscript is (countable) an addendum to a letter, added after the author’s signature while appendage is an external body part that projects from the body.

As a verb postscript

is to extend (a letter or another document) with additional remarks.

As nouns the difference between section and postscript

is that section is a cutting; a part cut out from the rest of something while postscript is an addendum to a letter, added after the author’s signature.

As verbs the difference between section and postscript

is that section is to cut, divide or separate into pieces while postscript is to extend (a letter or another document) with additional remarks.