No specific info about version 4.0. Please visit the main page of PDF Guru by Chromiumacx Soft on Mac Informer.
Edit, convert, and annotate PDF files.
Merge multiple PDF and images in one compact PDF file.
Scan to PDF and publish your PDFs to the web.
Haihaisoft Reader is a free PDF document Reader and Printer.
This program lets you convert PDFs to EPUB file format.