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Cannot Open Damaged File

About 25% of the pdf attachments I am receiving cannot be opened. Error Message: "There was an error opening this document. The file is damaged and could not be repaired." This only began in the last two weeks and I believe just after I installed Acrobat Reader XI. I am using Acrobat IX. It occurs with pdf attachments sent from multiple senders with different ISP's. I have repaired Acrobat Reader XI to no avail. I am out of ideas and in need of assistance.


Bill Woods 489 days ago


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Usually the conflict stems from how those PDFs were created and that is where most of the problems come from. It could be created from an older version of Acrobat, someone could have used an online converter that produce a bad copy of the PDF, the converter tools on Acrobat could be damaged in some way. However, since you mention you are using Reader XI, uninstall it and find a copy of Reader X and see if you can open the damage file.

Or try viewing the document through your browser or use another program like Foxit Reader and see if the file will open up.


By Michael Anderson answered 489 days ago  |   Comments (0)  |  New Comment

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Because some, not all, PDFs attached to incoming emails are affected the problem may be improper / incorrect designation of MIME types on the email server. If the server is not properly configured attached PDFs do get gobbered by the server as it processes them.
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Be well...


David Austin answered 489 days ago  |   Comments (0)  |  New Comment

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<p>Congratulations! The Acrobat User Community selection team has approved your status as Expert in the Acrobat User Community. We appreciate all your past contributions and hope you will continue to support the community by answering questions and participating in the Acrobat Answers Q&A program as you've done in the past.</p>

<p>As an expert, you will get a badge to display on your profile with the level EXPERT next to your name and you have become eligible to be nominated to the Adobe Community Professional Program.</p>

<p>After reviewing the Adobe Community Professional Program information at https://www.adobe.com/communities/professionals/, please let us know if you are interested.</p>

<p>Someone from the selection team will contact you soon regarding the community professional program. Keep up the good work!</p>

<p>Regards,</p>

<p>The Acrobat User Community Team</p>


<p>**** Disclosure Requirements for Endorsements Received by Third Parties  ****</p>

<p>If you endorse or refer people to the Acrobat User Community in any venue,  it is our responsibility to ensure that you are aware of required compliance with the <a href="http://ftc.gov/os/2009/10/091005revisedendorsementguides.pdf">FTC’s Guidelines</a>. Both you and Adobe can be held liable under federal law for making unsubstantiated claims and for not disclosing your relationship with Adobe. In particular:</p>

<ol>
<li>Always disclose if you have received any type of incentive – free products, promotional items, travel, gifts, payment, and so on from Adobe. The disclosure must be on the same page as the endorsement.</li>
<li>Be truthful. Endorsements should not be misleading. Never make unsubstantiated or exaggerated claims about the benefits of Adobe products or programs. Any statements or endorsements about an Adobe product must be based on upon your actual experience.</li>
</ol>

Thank you again for your support of Adobe and the Acrobat User Community</p>

This is from the article noted below.


Acrobat products have historically opened a PDF as long as the %PDF-header started anywhere within the first 1024 bytes of the file. No checks were performed on the extraneous bytes before the %PDF-header. However, the 10.1.5 and 11.0.01 updates improve security by enforcing stricter parsing of the PDF-header. The product now refuses to open the small fraction of PDFs that do not correctly start with the '%PDF-' header and an error appears:

Error: the document is damaged and cannot be repaired. Adobe Reader could not open because it is either not a supported file type or because the file has been damaged (for example, it was sent as an email attachment and wasn't correctly decoded).


http://helpx.adobe.com/acrobat/kb/pdf-error-1015-11001-update.html


There are a few workarounds mentioned in the article.



Lori Kassuba answered 436 days ago  |   Comments (0)  |  New Comment

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