PDF Studio is an easy to use yet powerful PDF editor. It maintains full compatibility with the PDF format and supports most PDF functions. It allows you to view, print, and search PDF files, review and annotate documents with text, graphics, and sound, scan to PDF, fill in and save forms, secure documents with passwords and permissions, merge, split, and assemble documents, convert Word, image, and text files to PDF, and add bookmarks, watermarks, headers, and footers. It is integrated with Google Apps and Sharepoint. The Pro version allows content editing, permanent manual redaction, batch processing, precision measuring tools, digital signatures, and preflight PDFs with PDF/X profiles.
WP Secure Plugin protects WordPress websites from malware, viruses, and hidden code injection from exploits and hacking attempts. It uses a "proactive approach" (Ethical Hacking Research) of programming to secure themes from malicious code and hidden traffic scams and uses the Admin Notice Area of WordPress to alert site owners of problems.