PDF Optimizer is a Office Tools software developed by FyTek, Inc.. After our trial and test, the software is proved to be official, secure and free. Here is the official description for PDF Optimizer:

Marydown Editor: If they are run from a web server that supports byteserving, the optimized PDF files will display the first PaGE without transfering all the PDF to the user's browser.This can save considerable time over a slow Link when displaying PDFs. In addition, you can secure your PDFs with PDF Optimizer.