[Swftools-common] How to keep hairlines visible?

[Hans J Nuecke]

I have a question regarding a special "issue" with hairlines:
In case the original document is not available and also Acrobat PRO is 
not an option... Is there a way to assure hairlines are converted and 
kept in the resulting SWF file after a pdf2swf conversion? I.e. set the 
width of lines  to a minimal value of e.g. 1px?

I tried different settings of parameters like caplinewidth, multiply, 
minlinewidth and the quality values.
With no real convincing results.
Also poly2bitmap or bitmap did not help.

Background info:
Hairlines, i.e. lines of a width > 1px, can be problematic in a PDF.
Those lines can disappear in the converted SWF file or later when 
showing the SWF file on a monitor. I assume also due to rounding errors.

Such hairlines can be the result of a downscale of thin lines.

Adobe Acrobat Pro (like probably other tools) can correct such problems 
in setting the line width of lines thinner than a threshhold value to a 
specified width.
Of course it would be possible to avoid downscaling or increasing the 
original line width.

Thanks
Hans