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Go to Edit>Preferences>General>Display and make sure the box next to "Smooth Line Art" is ticked. It is off by default in Acrobat 5.0 (speeds screen redraw, apparently). mmadison Quoting "Walter S. Hemingway" <[EMAIL PROTECTED]>: > > The PDF list is a service provided by PDFzone.com | http://www.pdfzone.com > __________________________________________________________________ > > I have been creating images and pages in Illustrator and then converting > to PDFs. My graphics have no anti-aliasing. What is going. What do I > need to set to keep the edges from looking blocky? > > Peace, Love & Nappiness > WaltSH > (803)748-8594 > [EMAIL PROTECTED] > "(After choosing a song), what you take is the song itself," he said. > "The recording is simply that day, that time and what the person > (performing) was feeling. You take the best out of it, but you have to > recreate it yourself." > Leon Redbone > > > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] > On Behalf Of Dan-Ari Feinberg listreader > Sent: Thursday, October 02, 2003 4:23 PM > To: [EMAIL PROTECTED] > Subject: [PDF] Images appearing blurred in PDF > > > > The PDF list is a service provided by PDFzone.com | > http://www.pdfzone.com > __________________________________________________________________ > > I was not following this thread carefully, so please excuse me if > someone > has already mentioned this: > > If you have screen shots as GIF files, then the culprit in fuzzy images > is > not the resolution but the compression. JPEG compression will cause > your > screen shots to be fuzzy, probably no matter how high a quality (and low > a > compression) you set it for. > > My bet is that you have Compression set to Automatic or JPEG. Set the > compression to ZIP. > > ZIP is a lossless compression that is well suited for screen > shots. Lossless means that when Acrobat decompresses the image to > display > it, the data will be the exact image that you fed into Distiller. JPEG > is > lossy compression, which means that what you get after decompressing is > not > what you started with. The idea is that your eye won't notice the > difference, but with screen shots or any hard-edged line art, you will > notice, as you have. > > There is something called 4-bit ZIP. (At least I think there was in > Distiller 4.) This drops the least significant 4 bits of each byte, > keeping only the 4 most significant bits. In essence, it rounds off the > > color values. This is a lossy process. Then, the data is zipped, and > this > part of the process is lossless. What is being lost is that color > values > are getting rounded off, but individual pixels are not being combined > with > other pixels, thus 4 bit zip will not cause blurriness, but it might > cause > color banding if you have lots of smooth shading. > > I am reaching into my memory banks, but I seem to remember that GIF > images > fool Distiller. Distiller has compression settings for Color Images and > > Monochrome images. (I don't remember if Distiller 4 uses those same > names.) Your GIF files make Acrobat Distiller think that they are color > > images, and it will use the JPEG compression that you surely have set as > > the compression for Color Images. > > If some of those GIF files are true contone image files and you want > them > JPEG compressed, you may have some luck changing the screen shots into > another file format that Distiller will recognize as not contone and > will > not use the Color Images compression setting. > > Contone - continuous tone. As in, a photograph, where colors span a > continuous range of tones. This is different from an indexed image like > > your screen shot, where there are certain set color tones (red or black > or > white, etc.) but not every color in between. > > Regards, > Dan-Ari > > > To change your subscription: > http://www.pdfzone.com/discussions/lists-pdf.html > > > > > > To change your subscription: > http://www.pdfzone.com/discussions/lists-pdf.html > To change your subscription: http://www.pdfzone.com/discussions/lists-pdf.html
