Artwork Requirements & Image Guidelines

Pixerr uses high-quality print-on-demand production for physical products you create in Pixerr Studio. To make sure your products look great on t-shirts, posters, mugs, and more, we recommend following these artwork guidelines.

The golden rule: Start with the highest quality image you can. It's easy to scale down, but impossible to add detail to a low-resolution image.

• Use high-resolution images — At least 300 DPI where possible for crisp, professional prints
• Upload at or above recommended dimensions — Each product type has optimal pixel sizes (see table below)
• Accepted file types: PNG (preferred for transparency) and JPG/JPEG (for non-transparent designs)
• Avoid upscaling small images — Low-resolution images will look blurry and pixelated when printed
• Keep details away from edges — Products often require a bleed/safe area; important text should be at least 0.25" from edges
• Test your design — Use our product preview to see how your artwork will look before publishing

Transparency lets the product color or material show through areas you did not paint—essential for logos on shirts, decals on phone cases, and logo-style art on apparel. Without it, a white or gray rectangle prints around your design.

File format

• Use PNG for any design that should float on the product (alpha channel = transparent pixels).
• Use JPG only when the artwork is a full-bleed photo or illustration with no see-through areas.
• Export from your editor with background removed—do not flatten onto white if you want the garment color visible.

In Pixerr Studio

After you apply a transparent PNG to a product, Studio may show Quick layout fixes under the mockup:

• Shrink 5% / Shrink 10% — adds breathing room inside the print area
• Expand 5% — makes the art slightly larger (edges may crop)
• Center — moves the visible design to the middle of the print area
• Fit safely — scales the design to sit inside the safe print zone
• Reset — returns to your original uploaded file

The preview checkerboard marks transparent pixels. Full product workflow: Working with transparency on the Creating Products guide.

Color Considerations

• Work in RGB color space — Pixerr handles color conversion for print during production
• Consider contrast — Avoid extremely dark designs on very dark products unless you want a subtle look
• Text readability — Use high contrast for text (light text on dark backgrounds or vice versa)
• White backgrounds — If your design has a white background, it will print white. Use transparent PNG if you want the product color to show

File Format Best Practices

• PNG (Recommended): Use for designs with transparency, crisp edges, or text. Supports transparency (alpha channel).
• JPG/JPEG: Good for photographs or complex images without transparency. Slightly smaller file size.
• Avoid: GIF (limited colors), BMP (large file size), or heavily compressed images
• Save quality: When exporting, use maximum quality settings (90-100% for JPG)