Why does the output image appear at 772 x 772 px even though I design it as 256 x 256 px?

Question

I have created an icon in Adobe Illustration at 256 x 256 pixels.

When I output the file, it is shown as 772 x 772 pixels.

What is happening here, and how do I solve it?

Thank you!

Answer 1

1. New Document. Units = Pixels. Width = 256 px. Height = 256 px.
2. Align your artwork inside the given boundaries.
3. Export as PNG (as shown on your 2nd screenshot).