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ColorSync or other to reduce pdf size

6567 Views 35 Replies Latest reply: Oct 6, 2012 9:39 AM by laurafrommedford RSS
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Hotwheels22 Level 1 Level 1 (5 points)
Currently Being Moderated
Oct 10, 2011 11:08 AM

I'm having a devil of a time with prints to pdf ending up at 40 or 50 Mb and scans doing the same.

 

I was advised to dowload ColorSync but can anyone help me figure out how to use this to downsample pdf's? I'm reading the help and can't figure it out.

 

Also, when printing from PREVIEW to pdf are there settings or pulldowns which I can use to set the DPI or otherwise keep the file size down??

 

Thanks.

 

Jon

  • Csound1 Level 7 Level 7 (32,320 points)
    Currently Being Moderated
    Oct 10, 2011 11:12 AM (in response to Hotwheels22)

    File>Save>Quartz Filter:

     

    Screen Shot 2011-10-10 at 1.11.14 PM.png

  • Csound1 Level 7 Level 7 (32,320 points)
    Currently Being Moderated
    Oct 10, 2011 1:10 PM (in response to Hotwheels22)

    No

     

    The quartz filter is in Preview, Colorsyc has nothing to do with it.

  • Csound1 Level 7 Level 7 (32,320 points)
    Currently Being Moderated
    Oct 10, 2011 1:34 PM (in response to Hotwheels22)

    I have no idea where you are getting the idea that I suggested to print, I clearly posted a picture of the 'save' dialog.

     

    Open a pdf in Preview, select Save, choose the filter option you want (in this case reduce file size) and save it, I really don't understand what is the difficulty here.

  • Kurt Lang Level 7 Level 7 (31,485 points)
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    Oct 10, 2011 1:46 PM (in response to Hotwheels22)

    What are these PDF files being created from? You mentioned scans. Are you just turning the scanned images into PDF?

     

    If so, all you're doing is embedding a raster image into a PDF wrapper. It's not going to get smaller just because it's in a PDF.

     

    If you do reduce the size, as Csound1 has shown (it's one way to do it), the file will get a lot smaller, but at the expense of both reducing the number of pixels in the image, and turning the embedded image into a highly compressed JPEG. Doing that will turn your image into junk. So if maintaining image quality is necessary, you do not want to reduce the size.

  • jsd2 Level 5 Level 5 (6,200 points)
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    Oct 10, 2011 2:01 PM (in response to Hotwheels22)

    Take a look at the first post in this long thread:

    https://discussions.apple.com/thread/1292868

     

    The link to download his compression filters now renders with an extra trailing asterisk, giving an error. Without the asterisk  it redirects to:

    https://public.me.com/jcolas

     

    The added filters give a number of choices:

    Screen shot 2011-10-10 at 4.55.34 PM.png

  • hotwheels 22 Level 1 Level 1 (0 points)
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    Oct 10, 2011 4:41 PM (in response to jsd2)

    Hi jsd,

     

    Is there a functionality that you know of that will do this for PRINT? It seems to me that you have to get it to a (large) pdf first and then SaveAs using these options?

     

    I mean this is fantastic (THANKS) but there is another side to this which is opening images and then printing to pdf, yes?

     

    Also, I gather that buying Acrobat doesn't fix this because there is some issue about what it can't do in Snow Leaopard?

     

    Thanks,

     

    Jon

  • jsd2 Level 5 Level 5 (6,200 points)
    Currently Being Moderated
    Oct 10, 2011 4:42 PM (in response to Hotwheels22)
    Plus I need it to work easier.

     

    Here's a further project for you!

    How to automate application of quartz filter to scanner output?

    (see the 10/8/11 post)

  • jsd2 Level 5 Level 5 (6,200 points)
    Currently Being Moderated
    Oct 10, 2011 5:37 PM (in response to hotwheels 22)

    Our last two posts crossed.

     

    The idea behind the Automator folder action described in the other thread is to create a special folder, perhaps on your desktop, such that any PDF file that is placed into that folder  gets automatically compressed  by whatever Quartz filter you chose when you created the Automator workflow (I'd choose the "standard" 150dpi, average quality filter.)  That avoids having to first open the large PDF in Preview and then re-save it.

     

    I don't know anything about changing size as things are printed, or about Acrobat.

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