Markzware has released Pict Attributes XT for QuarkXpress 6. Markzware claims that Pict Attributes XT "remembers" the attributes of a picture box when you perform a "Get Picture..." and restores the picture's scale, offset, rotation, skew, runaround and "flip". For bitmap TIFF images, the colour, shade and negative are also retained.
Markzware suggests that Pict Attributes XT can be used to substitute high resolution images for low resolution ones without losing the vital parameters.
The plug-in runs under QuarkXpress 6 on Mac OS X only. It costs around $30 (£17) from the Markzware Web site.