we have quite big problem with Slice Tool in Illustrator CS6.
We have simple curve then slice is created from Object - Slice - Make so the slice is exactly fit on the object. At least on the artboard.
But when we want to export that object-slice for the web, there is a one pixel space between one edge and curve (which is exactly horizontal at this edge).
This is the slice on artboard, there is no visible imprecision:
Same but magnified:
Here is the same slice in Save for Web dialog, there is visible space which is then on the output image:
Can you tell us where can be a problem or is it a bug? How can we solve it?
Thank you very much.
My guess is the space is in the html and not the image. Open the neighboring images in photoshop to see if there is a 1 px gap. If the images turn out to be good (no gap, the image sizes for height add up correctly), then you need to correct the problem in the html.
We do not use in HTML, we need precise PNG file from the slice which the tool does not make it.
I believe the slice tool is still buggy and hasn't been updated in a long time, like what happens with Illustrator a lot. Seems to be a low-priority product for them.