What actually makes a pattern seamless?+
The opposite edges have to match exactly, so the right edge continues into the left and the bottom into the top. If they do not, a grid of hard lines appears the moment the buyer tiles it.
How do I check for a seam before listing?+
Repeat the tile into a three-by-three block and look at it small. Seams and unintended diagonal lines both show up at that size and are almost invisible when you inspect a single tile up close.
What size and resolution should the tile be?+
State both in the listing, because buyers scaling a tile onto fabric or wallpaper need to know before they buy. A tile that cannot be enlarged is the most common complaint in this category.
Should I supply JPG or PNG?+
Both, and say which is which. PNG preserves a transparent background where the buyer wants to drop the motif onto their own color; JPG is smaller for anyone printing it as-is.
Can I sell a seamless pattern made with AI on Etsy?+
Yes, with disclosure. Etsy allows AI-assisted designs under its Creativity Standards provided you are clear about how it was made.
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