Alternatives to PDFKey Pro

Booklet to PDF utility

Read, annotate, edit, convert, create, OCR, fill forms and sign PDFs

View, print, and comment on PDF documents

Print driver for printing documents directly to a pdf file

Display key code, unicode value and modifier keys state for any key combination

PDF reader, editor and annotator

View, create, manipulate, print and manage files in Portable Document Format

Quick Look extension for folders

Tools to protect your emails and files

Apple Notes extension

PDF editing software