For best print quality, we recommend uploading vector artwork or high resolution images at 300 PPI or better. There are different ways to export or generate your artwork at maximum quality:
Check the size and resolution of your image. For example, If you are ordering a 3" x 3" die cut sticker, your image size should be at least 3" x 3" and "Resolution: 300 pixels per inch". If your image is at that size or larger, you can save your file as a PSD and upload it as is.
If your image is at a lower resolution, it will not help to increase the pixels per inch or enlarge the image. This will only stretch the image to a larger size and it will still print fuzzy and pixelated. We recommend contacting the original designer to get a better version of your artwork. If that is not applicable, you can try the techniques below.
If your image is an illustration, you may be able to convert it to a vector using the Image Trace feature in Adobe Illustrator.