Hi Ronnie We will try ColorSync, we did as suggested using Preview but it doubled the file size??
Regards Clive On 26/06/2012, at 2:48 PM, Ronda Brown wrote: > Hi again Clive, > > I forgot about using ColorSync Utility. If Preview does not reduce > the PDF enough try ColorSync Utility. > I remember using it a long time ago and it did significantly reduce > the size of a PDF file. > > "ColorSync Utility.app" From finder select the "Go" menu, and > select Utilities. > In this folder you will find the ColorSync application. > > 1. Open ColorSync.app > 2. Go to the File menu and select open. Find the pdf file you want > to shrink and select it. > 3. You will see the first page of the pdf file in a 'preview > window', and at the bottom of the window you will find a drop down > menu with "Filter" by the side of it. > 4. Use the drop down menu to select "Reduce File Size", and then > click "Apply". > 5. You can then close and save the document, which will now be a > smaller size. > > Cheers, > Ronni > > On 26/06/2012, at 2:26 PM, Ronda Brown wrote: > >> Hi Clive, >> >> Just adding to Carlo's comments. >> >> Open the PDF in Preview and then save it (as a PDF) again; the >> resulting file will usually be significantly smaller than the >> original with no difference in quality. >> >> Preview Save dialog includes, in the Quartz Filter pop-up menu, a >> Reduce File Size option. >> However, this option uses compression, so it reduces the quality >> of images and text in the resulting PDF. >> If you simply re-save a PDF, without this option, no compression >> occurs. >> >> How does this work if Preview isn’t actually compressing images? >> The program is simply using OS X’s built-in PDF-processing >> features to strip PDF files of all the unnecessary bits: preview >> images, metadata, and the like. >> This feature is especially useful for PDFs created in Adobe >> Illustrator and InDesign, which tend to be unnecessarily large >> because of program-specific components and other non-vital data >> these applications save inside each PDF. >> >> Cheers, >> Ronni >> >> On 26/06/2012, at 2:12 PM, cm wrote: >> >>> Hi Clive, >>> >>> The effectiveness of compression of a PDF will vary wildly >>> depending on the content. Large PDF files normally contain a >>> large number of images or a few very large images. If you have >>> access to the source of the PDF you can choose to compress the >>> images at a lower resolution and thus cut down on the size >>> dramatically. You can also purchase tools which will compress the >>> images in a PDF even if you do not have the original source >>> document. >>> >>> Regards, >>> Carlo >>> >>> >>> On 26/06/2012, at 14:05 , Clive Slater wrote: >>> >>>> Hi Carl >>>> >>>> A .pdf >>>> >>>> Clive >>>> On 26/06/2012, at 2:00 PM, cm wrote: >>>> >>>>> Hi Clive, >>>>> >>>>> Compression works principally by finding patterns of repeated bits >>>>> and replacing them with an copy of the pattern and a count of how >>>>> many times the pattern is repeated. So a file with a lot of spaces >>>>> in it, or an mp4 video with large areas of the screen all the same >>>>> colour will compress down very nicely. However, if the file you >>>>> are >>>>> trying to compress contains little repetition such as an >>>>> executable >>>>> program file, then you will get very little compression. >>>>> >>>>> What was the file you were trying to compress? >>>>> >>>>> Regards, >>>>> Carlo >>>>> >>>>> On 26/06/2012, at 13:55 , Clive Slater wrote: >>>>> >>>>>> Hi >>>>>> >>>>>> OSX 10.4.11 g4, >>>>>> >>>>>> Trying to compress a 37mb file using archive does not compress >>>>>> the >>>>>> file , turns it into a .zip but the file size is the same >>>>>> size. What >>>>>> am I missing. >>>>>> >>>>>> Regards >>>>>> >>>>>> Clive > > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/ > wamug.org.au-wamug> -- The WA Macintosh User Group Mailing List -- Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> Settings & Unsubscribe - <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
