Always make sure you are using the highest resolution file available. If you are starting with a low resolution file, it is best to use an AI upscaler such as Topaz Gigapixel AI or Let’s Enhance. AI image upscaling can help increase the resolution of your file intelligently to maintain the quality of the artwork.
At JONDO, we accept a DPI (dots per inch) range of 32-300 but recommend at least 150DPI as the best resolution for AI printing.
We recommend for ICC profiles to be embedded in the image file. Adobe RGB (1998) is best suited for artwork while sRGB IEC61966-2.1 is best suited for photography. In the absence of an ICC profile, U.S. Web Coated (SWOP) v2 and sRGB IEC61966-2.1 will be referenced. If soft proofing, we recommend SWOP and sRGB for previewing.
Although JPEGs can be submitted in CMYK, we highly recommend saving JPEGs in the RGB color space or mode for best results. All files will be assessed in the sRGB IEC61966-2.1 color space. If a JPEG is submitted in another color space, the RGB color profile for the image will be referenced.