I created a simple circle drawing in Inkscape. Then I exported the drawing as png.

When I resize the image in IrfanView and save it as png then a thin white border appears around the circle.

You can see the difference between both images here:

Original image

Image after IrfanView

Why does saving with IrfanView put a white border around circle?


1 Answer 1


This is likely due to saving out a PNG-8 from IrfanView. PNG-8 has very basic transparency support, on or off. So with an anti-aliased edge like you have there, where you really need different levels of transparency, it is simply applying a transparency color map (taken from your white background color) and applying it to the pixels that aren't completely transparent.

To avoid this, make sure you are saving as a PNG-24.


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.