flpsed : A WYSIWYG pseudo PostScript editor

flpsed is a WYSIWYG pseudo PostScript editor. "Pseudo", because you can't remove or modify existing elements of a document. But it does let you add arbitrary text lines to existing PostScript documents. Added lines can later be reedited with flpsed. Using pdftops, one can convert PDF documents to PostScript and also add text to them. flpsed is useful for filling in forms, adding notes etc.