Adobe PDF file is damaged. How can it be fixed

One of our staff created a PDF file and for some reason it is damaged.  I tried to open it with Adobe Acrobat Pro, but no luck.  It is a VERY important manual.  Any help would be appreciated.
J.R. SitmanIT DirectorAsked:
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web_trackerConnect With a Mentor Commented:
Well unless you can find another copy that is not corrupted or you can find a program that can repair the file you are out of luck.  The file is so large, they probably should have made to books out of the file. For example volume one and two....
what pdf recovery tools have you used?
pdf recovery tool is supposed to be pretty good.  http://www.pdf.recoverytoolbox.com/ It costs money but if the pdf is really important the program is probably worth the cost.

There is another program that is supposed to repair corrupt pdf files but I am not sure how good it is, it is called pdf repair: http://www.datanumen.com/pdf-repair/ There is a paid and free version of the software.
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Dan CraciunIT ConsultantCommented:
Try Itext RUPS to inspect your PDF and see  if it's corrupted.

HTH,
Dan
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J.R. SitmanIT DirectorAuthor Commented:
It fails.  See attached
pdf-repair.png
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Dan CraciunIT ConsultantCommented:
Then it's broken at the beginning.

There are lots of tools that claim they can repair PDF's, did not see one that succeeds.
Maybe someone else had a better experience.

Dan
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web_trackerCommented:
I would check to see if there is a backup of the file some where else. Or right click on the file go to properties and click on previous version to see if there is a previous version of the file available and open that.
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J.R. SitmanIT DirectorAuthor Commented:
Nope, none available.  Even restored the last 4 backups, all bad.  Any other ideas?
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web_trackerCommented:
Can you open the file on another computer?? How about the backups can they be opened on another system?
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J.R. SitmanIT DirectorAuthor Commented:
I've tried it on 3 computers, no luck
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J.R. SitmanIT DirectorAuthor Commented:
Recovery toolbox was able to open the file.  However, it has damaged pages and only the "notes" that the editor has placed on the pages are visible.  Any ideas what else I can do?
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web_trackerCommented:
If the files are extremely valuable you can try a data recovery place to see if they can dig deeper and extract more of the valuable content. Or you can try other data recovery tools, you just might stumble on something that may work.  You may have to use a recovery tool that costs money, it depends how valuable the file is.
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J.R. SitmanIT DirectorAuthor Commented:
Recoverytoolbox fixed enough that we could recover what we needed.
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web_trackerCommented:
Thanks for awarding the points, too bad you were uable to recover the whole pdf file.
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J.R. SitmanIT DirectorAuthor Commented:
better than nothing
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