Image preparation for print

I struggled when setting up the image to be able to print. I spoke to various people who used different methods of setting up their images. To set up my image I tried Photoshop, Illustrator and In design. I found that when using photoshop the vectors of the images I created on illustrator were destroyed leaving me with an image that was pixelated. When using In design I struggled because I wanted to print the image in two layers and in In design I was unable to do this because I couldn't create the images to be exactly on top of each other. Illustrator was the best programme to use because it kept the quality of the image and allowed me to print the top image and the bottom image for screen printing in layers. Experimenting with these programmes took a lot of time.