Conversion of image files to high resolution

Would require 12 image files to be converted into the following high resolution sizes:-

• 2:3 Ratio for Printing:
INCH: 4x6 / 6x9 / 8x12 / 10x15 / 12x18 / 16x24 / 20x30 / 24x36
CM: 10x15 / 20x30 / 30x45 / 40x60 / 50x75 / 60x90

• 3:4 Ratio for Printing:
INCH: 6x8 / 9x12 / 12x16 / 18x24 / 24x32
CM: 9x12 / 12x16 / 15x20 / 30x40 / 45x60

• 4:5 Ratio Printing:
INCH: 4x5 / 8x10 / 12x15 / 16x20 / 20x25 / 24x30
CM: 10x12 / 20x25 / 28x35 / 40x50

• International Size (ISO) for Printing:
INCH: 5x7
CM: 50x70

A1 / A2 / A3 / A4 / A5
• 11x14 inch

Therefore, for every image file, i should receive 21 seperate sizes as above.