Compressing PDFs

Discussion in 'Mac Apps and Mac App Store' started by Dark Lain, Jul 7, 2006.

  1. Dark Lain macrumors member

    Dark Lain

    Joined:
    Apr 29, 2005
    #1
    Is there a freeware program for compressing pdf files with LZW compression? Even a comand line solution would be ok.

    I prefer LZW due to the fact that it is losses.

    If not what shareware utilities would you recomend that can do this.
     
  2. MisterMe macrumors G4

    MisterMe

    Joined:
    Jul 17, 2002
    Location:
    USA
    #2
    PDF files are pure ASCII text. Lossy compression is not possible.
     
  3. GimmeSlack12 macrumors 603

    GimmeSlack12

    Joined:
    Apr 29, 2005
    Location:
    San Francisco
    #3
    Well I know that you can use Automator to compress the images in a PDF only. That might be worth a shot. If you are not familiar with Automator I could probably drum up a pretty quick workflow for you.

    Actually I figured it out very fast:
    Finder: Get Selected Item
    PDF: Compress PDF Images
    Finder: Open File in Default Application

    Once the file opens you'll need to save a copy.
     
  4. RacerX macrumors 65832

    Joined:
    Aug 2, 2004
    #4
    The type of tools that give you that kind of control are PDF distillation apps. The two that I use are Adobe Acrobat Distiller (part of Acrobat) and Stone Design PStill ($69).

    In both cases you are limited to either JPEG or ZIP compression of color images (and CCITT Group 3 and Group 4 for monochrome images).

    The place where you would find LZW mainly used would be in multipage TIFF documents, which have been used for similar purposes as PDFs in the past.
     
  5. Dark Lain thread starter macrumors member

    Dark Lain

    Joined:
    Apr 29, 2005
    #5
    Thanks for all the replies. It's pretty much like I thought.
     
  6. IJ Reilly macrumors P6

    IJ Reilly

    Joined:
    Jul 16, 2002
    Location:
    Palookaville
    #6
    It's a little-known trick, but you can compress PDFs in OSX without using a third-party tool, or Automator. In the print dialog box, choose ColorSync from the Copies & Pages drop down menu and select Reduce File Size from the Quartz menu. This standard Quartz filter doesn't do much to reduce file size in my experience, but additional filters can be made using the ColorSync utility, which can be accessed directly by selecting Add Filters... from the Quartz dialog box. Making the filter do what you want is a trial and error process, but it can be done. And once it's done, the filter is accessible right in the Print dialog box.
     
  7. RacerX macrumors 65832

    Joined:
    Aug 2, 2004
    #7
    ... but only in 10.3 and later.
     
  8. jeremy.king macrumors 603

    jeremy.king

    Joined:
    Jul 23, 2002
    Location:
    Fuquay Varina, NC
    #8
    I wonder what this option does?
     

    Attached Files:

  9. IJ Reilly macrumors P6

    IJ Reilly

    Joined:
    Jul 16, 2002
    Location:
    Palookaville
    #9
    Not much, in my experience. I've had much better results working with the ColorSync filters.
     
  10. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #10
    Hmm...I turned a 504 kb into a 144 kb one.
     

Share This Page