To use most of these products you will need to have a graphics program which can read and manipulate .png and .psd file formats and often one which has layers capabilities. That generally means Paint Shop Pro 5.5+, Adobe Photoshop, or Corel Painter. There are other graphics programs which may fill the bill, but I do not use them or have them and therefore I can not vouch for them. You may have to consult the manuals or Help files for your own graphics programs to find out if the program can read .png and .psd file format and if it has layers capabilities. You can find out what file format the each product is provided in by reading the product description and the README file which is usually linked underneath the product description.