TruePack/Tools/POD & Printify

Fix Ugly White Edge Halos on Dark Shirts for Printify & DTG

Eliminate semi-transparent edge pixels that cause Printify white underbase outlines on dark t-shirts. 1-click PNG alpha choker at 300 DPI.

Print Halos Fixed100%
Edge Choke Depth1px or 2px
Alpha ThresholdConfigurable
Output Format300 DPI PNG
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The Etsy Seller Pain Point

When printing transparent PNGs on black or navy shirts, DTG printers lay down solid white ink wherever alpha > 0, creating an ugly white halo outline.

The TruePack Solution

TruePack snaps stray semi-transparent edge pixels (alpha < 180 to 0) and erodes edge boundaries by 1px or 2px, eliminating white underbase halos completely.

Engine Features & Specifications

  • Morphological edge erosion
  • Interactive Before/After zoom viewer
  • Preserves vibrant interior artwork colors

Frequently Asked Questions

Why do white halos appear on dark garments?

DTG (Direct-to-Garment) printers require an opaque white underbase. Anti-aliased semi-transparent edge pixels cause the printer to spray white ink past the visual edge of your graphic.