Once you have all of your images it's time to decide if you want to keep or remove the proxy card information on some of the cards. Likely you will have a mix of Chilli_Axe/hathwellcrisping's cards and berndt_toast83's cards. Chilli_Axe/hathwellcrisping's cards contain proxy information, berndt_toast83's cards do not.
This may not be an issue for you in which case skip to the next step.
For some however not having matching cards is a problem. To remove the proxy text from Chilli_Axe/hathwellcrisping's cards move the remaining text up and fill in the remaining space with black. The proxy text is not needed if you are using a custom back, which is required when printing with MPC.
Editing the images is quite easy and can be done by almost any image editing software. Do note that re-saving the image will increase the size of the image file depending on the program used.