qPDF Viewer is a fast and powerful PDF reader and document search app. It is built on a proprietary PDF engine and provides fast, high fidelity rendering of even password protected files, fast PDF search, continuous page view for easy navigation, multi-touch pinch to zoom, double tap to fit to screen width, a customizable toolbar, no requirement for an SD card, and full support for the PDF standard.
PDF Password Recovery Analyzer for Mac shows comprehensive information about a PDF file, including the cryptographic algorithm used and estimated time an attacker needs to crack your PDF password. In case you have lost your password, it may take ages to recover it with your home or office PC. PDF Password Recovery Analyzer allows you to connect to a supercomputer and use its computing power to recover your PDF password much faster.