... Or you could change the preflight rules to allow a certain amount of tolerance. Allow 0.19 point as the lower limit instead of 0.20 point for linewidth.
> -----Original Message----- > From: frameusers.com On Behalf Of Steve Rickaby > Sent: Wednesday, March 08, 2006 3:34 AM > To: framers at FrameUsers.com > Subject: Re: Line width in inported graphics slightly > diminishing in FM generated PDFs > > At 09:52 +0900 8/3/06, Yosuke Ichikawa wrote: > > >We're using Acrobat's preflight feature to check for lines thinner than > >0.2 pts. The thinnest lines in our .eps graphics are exactly 0.2 pts, > >but when we import these graphics in FM and check the PDFs created from > >FM, Acrobat preflight says the graphics uses "0.199600pt" lines. > > > >PDFs of these individual graphics, created from Illustrator, do not > >have problems with Acrobat prefight, so it seems to be some sort of FM > >conversion problem. > > > >Why does this happen, and is there any way to prevent this on the FM > >side? If there is no way to fix this, we'd have to tell our illustrator > >to make the lines in the graphics slightly thicker. > > This looks a lot like a rounding error problem due to two > different applications using different precision math. In > floating-point math, computers use a set number of bits to > represent the complete range of natural numbers. As a result, > some numbers actually cannot be represented precisely: the > more bits you use, the closer you get, but there's always a > compromise. > > I guess you have two approaches: > > . Ignore the preflighting and print anyway > > . Make the lines a little thicker > -- > Steve >