I am having a problem seeing the difference between say a 1pt line and a .5 line when viewing and creating an illustration at 100%. The line weights look identical. If I view or edit the illustration at say 200% the line weight difference is noticable. What is going on here?
Freehand is based on the Postscript imaging language which uses 72 points to an inch. Freehand was written when the prevailing computer display resolution was 72 pixels per inch (72ppi).
Therefore, 1 point = 1 pixel.
To display a stroke finer than 1 pixel, Freehands’ Preview mode can’t show a partial pixel, but it does show a lighter shade of gray.
If you’re designing web images, don’t use strokes finer than 1 point (1 pixel) because they won’t display well in 72ppi raster images.
When working with very fine strokes for print or other kinds of output, I find it easiest to work to scale. Make a custom scale in your page rulers such as 4 points = 1 point (400%).
View > Page Rulers > Edit
Please keep in mind that today’s computer displays have a higher pixel density than 72ppi so 100% view in Freehand won’t be actual size.