Re: [Swftools-common] How to keep hairlines visible?

[Hans J Nuecke]

Quick update:
I probably choose the wrong approach, trying to increase the settings 
for zoom and jpeg (quality).
A lower value for zoom helps to make hairlines visible. But because of 
interpolation and rounding there's always risk a line disappears.
so best is to avoid hairlines, increase the input quality, optimize the 
design.

Nevertheless: if anybody knows about an option that could do similar 
things with swftools as it is possible with the "hairline correction" 
function of e.g. Acrobat PRO or Preflight , I'd like to know.

Thanks
Hans

Am 02.01.2014 01:51, schrieb 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
>
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