[softwarelist] Re: Selecting thin lines in OPW documents

In message <44E41631.3090603@xxxxxxxx>
          Clive Bonsall <C.Bonsall@xxxxxxxx> wrote:

> Chris Johnson wrote:
>
>> There has been a lot of discussion over the years in various
>> maillists and newsgroups about the problems that sometimes ensue when
>> printing 'thin' lines on high resolution devices.
> 
> Do you have more details on this?  When I started my current DTP project
> using OPW, I was inclined to go for a line width (in tables especially)
> of 0.25pt. However, when the documents were converted to PDF using
> Acrobat Distiller, the lines appeared (to my eye) "too thick".

What happens when you print the resulting PDF or zoom in when viewing 
it? 0.25pt is pretty thin, but at low magnifications it is likely to 
appear thicker on screen compared to other content because its width 
covers a lot less than one pixel, yet without anti-aliasing a width of 
one pixel is the thinnest that can be shown. If you zoom in, the 
accuracy of the displayed width will improve a lot. Printing has the 
same effect due to the higher resolution used.

Martin
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Martin Wuerthner          MW Software          martin@xxxxxxxxxxxxxxx
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