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  • Jerome Colas Level 2 Level 2

    Thanks David.


    /Library/PDF Services/ as a location for the filters seems to also work on Mountain Lion


    (I never moved anyrthing and the "old" location in /Library/Filters still works.

    And good if ~/Library/PDF Services/ also works (~/Library/Filters does not work on Lion on Mountain Lion).

    So, also the "old" location still works, /Library/PDF Services/ looks like what the correct location should be.

  • iampaulriney Level 1 Level 1

    Hey Jerome


    I have tried to install your qfilters to my Library in 10.8 (Mountain Lion) and it doesn't work. My boss has 10.6 on her home office computer and swears by your filters. I have tried add new folders to my Library folder but nothing seems to be working. Two folders I have added are Library/Filters and Library/PDF Services. I even tried adding them inside the Application Support folder and nothing.


    Any help would be much obliged.

  • stefanradev Level 1 Level 1



    It is working and without any problem. Unzip the filters after downloading and the already sreates a directory named filters. Move this directory to your HD/Library and that is it. It should work.


    Best regards,


  • iampaulriney Level 1 Level 1

    This is what my Library looks like:

    Screen Shot 2012-10-11 at 12.12.27 PM.png



    This is what I got after installing the filters.
    Screen Shot 2012-10-11 at 12.12.14 PM.png

    Do I need to restart the computer?

  • stefanradev Level 1 Level 1

    Not correct. I see, you installed in User (your name)/Library/Filters - NO HERE!


    Install the filters ONLY in Macintosh HD/Libray/Filters and it should work . I am working with Mountain Lion and no problem.


    Screen Shot 2012-10-11 at 19.27.24.png

  • iampaulriney Level 1 Level 1

    perfect! Thank you!!!

  • stefanradev Level 1 Level 1

    My pleasure!



  • Efejota Level 1 Level 1



    Thanks a lot. For the second time (I think) your solution was a big help for me.



  • Bob Lyons Level 1 Level 1

    Thanks for the filters. They work great! I'm just using the 'standard' choice, and the results are as good or better than the Acrobat Pro 'Reduce file size' function. That's the main thing I've been using Acrobat for. (I hate giving money to Adobe!)


    Cheers :-)

  • th0mas_l Level 1 Level 1

    I'm glad I found this thread. Also thanks Jerome for the link to the filters - those are awesome.


    I am replying to add a little discovery from troubleshooting missing custom filters in the save-as dialog in PDFpen. Their support suggested to check /System/Library/Filters. Earlier I had looked in /Library/Filters and the folder was just missing.The one in System was where the default filters had gone.


    By then I had re-created that folder and dropped in the custom filters. That fixed my problem. I suppose they could also go in the /System/Library/Filters folder instead, but I am lazy and done making changes for now.


    FWIW, I am running OSX 10.7.5 on a MacPro and a Macbook Air and they both had the same problem and got the same successful fix.


    I'm guessing an OSX update scripted a move of the old /Library/Filters to the new /System/Library/Filters, and only moved the default filters and lost the custom ones.

  • ---KJ--- Level 1 Level 1

    Hello, all.


    New 2012 MBP, 10.8.2.


    I have added Filters to the following locations to no avail:



    /Library/PDF Services/


    Nothing but defaults show up in the Quartz Filter dropdown box when I attempt to export.


    I'm running a cobbled "fusion drive," in that once I got the laptop, an Apple-cert tech took out the optical drive and replaced with with an SSD, which is where all my applications are loaded and where they boot from.


    The /Library/ folder appears on this drive and not the regular spinning hard drive...should this have any effect? It's the only anolomy I can think of.


    Thanks; I have a 150-page color PDF document I'd like to have printed and bound, but it's over 700MB, which is more than a mite ridiculous. (How does a 20MB Pages document balloon into a 344MB PDF?) This is text and photos which don't have to be gorgeous, but the default "Reduce File Size" option looks like you're peering through cloudy, scratched Plexiglass. Yiiich.)

  • Jerome Colas Level 2 Level 2

    Hi KJ.

    I also have 10.8.2, and the filters located in /Library/PDF Services


    As an example, the full path to one of the iflters is:

    "Macintosh HD/Library/PDF Services/Reduce to 600 dpi average quality.qfilter"


    If you have the filters (not a folder containing the filters, not the zip :-) in this exact place, they should work.


    They appear when you choose "Export" in the File menu, then choose PDF as a format in Apple's Preview app.


    Hope I could help.



  • ---KJ--- Level 1 Level 1



    The phrase "Macintosh HD" did it; as referenced before, I have two drives. I was confusing one for the other since 10 doesn't put your HD on your desktop anymore. (You can change this in Finder Preferences: )


    Once I put the Filters folder into the /Library on the SSD drive where the applications are kept, it worked great. (I WAS placing them in the /Library folder where the data resides, a whole different drive.)


    Hope this helps someone else.


    Thanks, Jerome! The smaller files look a million times better than the default; like a PDF should look!

  • Dannymac22 Level 1 Level 1

    Let me add my own experience here. These filters are great, and they work well ... sometimes. But I have regular pdf files (not scanned images of text, but real text) that none of the standard built-in quartz filters reduce in size. In fact, some of these filters make the files larger! I have seen a number of files for which NONE of the built-in filters does any size reduction at all. So these filters are by no means a reliable way to reduce file size. Cross your fingers.


    Several people here have noted this. It's for real. But I haven't heard any explanation.


    I'm using an iMac with 10.6.8, but I have another machine using Lion that I believe does the same thing to these files.


    So why is this happening? Workarounds?

  • Christina Rodriguez Level 4 Level 4

    You can't really reduce the size of text... as it is not a raster image... There are things you can do to reduce the file size, but that all depends on what application was used to make the PDFs. For example, if you save a PDF from Adobe Illustrator, there is an option to make your PDF editable in Illustrator. If you have this option selected, then your file will be MUCH larger.... Also, in Illustrator you can outline text - BUT this will make your file even larger...


    I'm assuming though that you are not using Illustrator. Rather Word or Pages?


    Do your PDFs contain images? What are the pixel dimensions of the original image used? If the images were already small to begin with and you are suing the 150 dpi setting then you may actually be increasing the resolution...


    You could try Adobe Acrobat Pro. You can download the free trial and see if it works....