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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