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"attachments" not included?

May 9, 2012 8:54 AM

A lot of times when I re-save or optimize a pdf in Acrobat I get a warning dialog that says something to the effect of "This document contains attachments which were not included..." What is an "attachment" to a PDF? On a lot of these files I created the original and I never purposely did anything that I thought could be considered creating an attachment. And I never notice any difference before or after it supposedly strips off the attachment. What are these attachments and where do they come from?

 
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  • George Johnson
    11,671 posts
    Aug 11, 2002
    Currently Being Moderated
    May 9, 2012 9:38 AM   in reply to jfraze

    Acrobat allows you to attach files to a PDF. They can later be extracted. You can check to see if there are any by opening the Attachments pane:

     

    attachments.png

     

    How are you creating the original PDFs?

     
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  • George Johnson
    11,671 posts
    Aug 11, 2002
    Currently Being Moderated
    May 9, 2012 2:49 PM   in reply to jfraze

    It's possible that attachments are being added by Distiller. For example, if you have the "Save Adobe PDF Settings inside  PDF file" and/or "Save Portable Job Ticket inside PDF File" (I think) selected in Distiller's Advanced settings, it will include those things as attachments. The former will be a .joboptions file and I'm not certain of the latter.

     
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