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I have been using CS5 for a number of years and don't recall ever running into this problem before. The part of my design that is "streaking" with the small random white lines is a simple silhouette I used live trace on. It was not occurring on any of the other objects in my design. A simple web search brought me here and I tried a few of the suggestions ...


It wouldn't really add anything. That is what pixel images are anyway, a map of discrete colored squares, exactly the same as if you converted each pixel to a vector square. Take this image from my answer on a previous question asking how to do exactly what you are talking about: That is a 256 pixel square tile increased in size to 6,400 pixels square, ...


As you put it, vectorizing every pixel makes no sense. Imagine you vectorize every pixel and then resize it. You simply have bigger squares. The exact same thing happens if you change the ppi on an output, you have bigger pixels. You do not need to resample it. You want to get rid of the blurriness. That is a totally different issue. That happens when ...


As has already been established, Live shapes do not respect the 'Align to Pixel Grid' setting. A few workarounds: Set up a regular grid at 1 pixel increments and enable Snap to Grid. Convert the shape to a regular shape (Object → Shape → Expand Shape). The shape will then align to the pixel grid as normal. If there isn't already a keyboard shortcut for ...


As of Illustrator CC (version unknown) objects created with Rectangle, Ellipse and other "sub tools" of Rectangle tool will create "Live shapes". Live shapes don't heed the setting "Align new objects to pixel grid". I personally hope that this is considered a bug by Adobe as it makes wireframing, UI design and pixel-perfect design more cumbersome.


Open "Levels" and zoom in as close as you can on one of the incorrect pixels. Using the Black Eye Dropper within the Levels window, click on the bad pixel. It will change all pixels of that color (and darker) to pure black.

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