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This is an outstanding observation. It makes aobsolute sense. The print driver says: "Image X appears on this page," so includes the entire image in the PostScript file...even if only a hairline of the container appears on the page. Remember, too, that a 12 x 18 image (55.6 MB) is roughly four times the size of a 9 x 12 image (13.9 MB). Now, I ran a couple of tests. A 55 MB with sold color distilled to 34 KB with Press quality job options. This reduction factor certainly isn't going to be as high with a collage of photos on top of a photo, for example. However, a colleague supplied a Quark PDF in which a single 7 x 11 page was 22 MB which I thought was bloated big-time. I did two things to test my theory. One, I refried the PDF (made a new PostScript file) with the Press quality job options. The file came down to 5 MB. I also made a PostScript file with the Acrobat Distiller PPD and achieved the same results...a file that was nearly 20% the size of my colleague's file. My experience is that depending on the elements on the original page, one can easily achieve a 75 to 95% reduction when distillling a PostScript file and with the Press quality job options. In the case where I refried the PDF, the PS file was 36 MB...the result was a file reduction of about 85%. In regards to the original post, a 55 MB PDF file seems large for a brochure. But we don't know anything about that brochure...whether it's really a brochure, or a several-page booklet, how many images are involved, whether there are clipping paths or blends, what size it is, and how the PDF was made. Without complete information, we're spinning in the wind when we try to make any sense out of this. Rich -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Mitchell Turner Sent: Saturday, February 28, 2004 7:25 AM To: [EMAIL PROTECTED] Subject: Re: [PDF] Huge PDF files from quark 6 (on mac) The PDF list is a service provided by PDFzone.com | http://www.pdfzone.com __________________________________________________________________ Don't know if anyone mentioned this but I've had Quark files that appear to be roughly double the size they should be when distilled. The specs for the files are typically; 32 page facing spreads, saved as single page postscript file. I've found that if a picture box extends even slightly over to the opposing facing page, that the image will be included in the postscript file twice. This is a pain because often a picture box from one page will cross over and it looks like the entire image is included in the postscript and the distilled pdf. -Mitch Turner Date: Thu, 26 Feb 2004 16:04:54 -0800 From: Todd Donahue <[EMAIL PROTECTED]> Subject: Re: [PDF] Huge PDF files from quark 6 (on mac) The PDF list is a service provided by PDFzone.com | http://www.pdfzone.com __________________________________________________________________ False. An EPS file containing raster data makes a call to either the image or colorimage PostScript operator in order to draw its bitmap. Distiller intercepts these calls and applies downsampling and compression to ALL images. It can distinguish the type of image i.e. monochrome, grayscale, or color by examining the parameters passed to the image operator. It will then apply the appropriate set of downsampling and then compression to the image. Notice in the Distiller UI there are separate settings for each of these types of images. - -- Todd Donahue Five South Software On Feb 26, 2004, at 2:07 PM, Lynn Mead wrote: > It is possible to have EPS images that contain rasterized information > too. In these cases I believe that any distiller settings for > downsampling and compression are _NOT_ applied to the raster > information inside the EPS. To change your subscription: http://www.pdfzone.com/discussions/lists-pdf.html ------------------------------ Date: Thu, 26 Feb 2004 17:42:43 -0500 From: Leonard Rosenthol <[EMAIL PROTECTED]> Subject: RE: [PDF] Huge PDF files from quark 6 (on mac) The PDF list is a service provided by PDFzone.com | http://www.pdfzone.com __________________________________________________________________ At 03:10 PM 2/26/2004, [EMAIL PROTECTED] wrote: > By the by, you could try the PDF Enhancer > (http://www.apago.com/PDF_Enhancer) on your 54 MB file. I have not had > good luck with this tool (it really hurt my BMP and TIFF images). Which Enhancer did you use? Did you look at the target settings and adjust them to not downsample images as much?? > (It is also annoying that I cannot run PDF Enhancer on my WIN2000 box > unless I am in the Administrator mode.) Sorry about that - it's fixed for a 2.0.3 update due next week! Leonard - ------------------------------------------------------------------------ --- Leonard Rosenthol <mailto:[EMAIL PROTECTED]> Chief Technical Officer <http://www.pdfsages.com> PDF Sages, Inc. 215-629-3700 (voice) 215-629-0789 (fax) 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
