Hermetic Systems

This software allows users to explore the Prime Number Spiral, where prime numbers are marked in a spiral arrangement of natural numbers.

This software can add or subtract days/months from a date, calculate days between two dates, and convert dates in several solar calendars including Gregorian, Julian, ISO 8601 Week, Hermetic Leap Week, and day-in-year (yyyy-ddd).

This software provides a steganography tool to hide any file inside BMP image files with the option of using a stego key. The hidden file remains undetectable to any software including those using statistical methods.

This software allows users to convert multiple files from GIF, JPG, PNG and BMP to JPG, PNG and BMP formats. It also offers optimization options for JPG files with various quality and compression values. The converted files can be previewed in the user's web browser.

Securely delete multiple files and folders with this program that overwrites data for complete eradication. Enjoy single-file or batch mode operation and wipe deleted files as well as those placed in the Windows 7 Recycle Bin.