Preparing Files for Print
To ensure your work is ready for printing, convert it to high-quality JPEGs that include an embedded color profile.
When exporting, use an RGB color profile; recommended options include P3, Adobe RGB, and sRGB.
For optimal quality, save your JPEGs with a quality setting of 10 or higher in Photoshop, or 90% in Lightroom, or use equivalent settings in your preferred editing software.
Most items are printed at 300 DPI, so your files will be automatically adjusted for print. However, if you want more control over the final output, you can manually resize your files and apply any desired sharpening before submission.
Borderless, 1/4-inch, or 1-inch added border options are available for prints
Borderless up to 3 inch borders are available for canvas prints, with the option of mirror, extended
Not sure how big you are able to print your image? Use this infographic from Photobiz will help guide you.
With the ability to upscale, the below information can still be utlized as a guide for assurance of high quality, but is no longer a rule.