d. Images or logos in png/jpg/jpeg
If you are adding image files or logos in png/jpg/jpeg format to your design, we recommend for them to be at least 300 PPI (pixels per inch) for good quality output. You can check the PPI of your images by opening the Links window (Window > Links), clicking on the image file, and looking at the PPI in the provided information.
You will also have to make sure to provide us with the image files to avoid any missing files during the print process. You can do this by either embedding the files or sending us all linked assets.
Tip: If you’re looking to center your images, refer to Centering Logos under b. Adding logos.