About resampling

Fireworks resamples (resizes) images differently than most image-editing applications do.

• When a bitmap object is resampled, pixels are added to or removed from the image to make it larger or smaller.

• When a vector object is resampled, little quality loss occurs because the path is redrawn mathematically at a larger or smaller size.

  Because the attributes of vector objects in Fireworks are visible as pixels, some strokes or fills may appear slightly different after resampling. This occurs because the pixels that compose the stroke or fill must be redrawn.

  Note: Guides, hotspot objects, and slice objects are resized when the document's image size is changed.

  You can alter the size of a bitmap image by adjusting the resolution or by resampling the image.

• When adjusting the resolution, you change the size of the pixels in the image so that more or fewer pixels fit in a given space. Adjusting the resolution without resampling does not result in data loss.

• When resampling, you either add or remove pixels:

  Resampling up

  Adds pixels to make the image larger. This approach can result in quality loss because the pixels being added do not always correspond to the original image.

  Downsampling

  Removes pixels to make the image smaller and results in data loss in the image. This approach always causes quality loss because pixels are discarded to resize the image.

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