I've got a Transparent PNG and want to put a 1px border around the visible part of the image.
When I try to add a Border in Gravit.io it puts the border around the outside of the rectangle (the whole png)
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2Never used Gravit.. but it appears to be a vector application. Typically vector apps see PNG files as one object and although the PNG may contain transparent pixels, it's the boundaries of the actual image (the outer rectangle) the vector app detects, and not the non-transparent pixels within those boundaries. At least this is true for Illustrator (and I believe Inkscape as well.)– ScottCommented Mar 6, 2022 at 18:27
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1@Scott - I agree. If it's a vector image editor, then it's likely not possible, at least not directly/automatically. It could be done very easily in a raster image editor such as Photoshop or GIMP though - then just export as PNG again.– Billy KerrCommented Mar 6, 2022 at 19:13
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Thanks, makes sense. What's confusing is that Gravit.io will see the edges of non-transparent pixels as the boundary for some things like "drop shadow" but not for others (like Border)– Clay NicholsCommented Mar 7, 2022 at 3:05
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Illustrator's the same. I think it's because the basic under-the-hood process for drop shadows is to copy, rasterize, greyscale, blur, place below original object -- so the transparency is simply built into the rasterization step for shadows and glows.– ScottCommented Mar 7, 2022 at 3:23
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1 Answer
Convert the PNG to a SVG with something like: https://png-to-svg.com/