11 replies
by vinnyd
That document giving the error has been damaged.
Every PDF has "document security" in the file.
That error your getting says that "document security" tag is missing.
So either that one pdf is bad!
Was not downloaded successfully.
Your antivirus program has done something to the file
Or you have some adware/spyware/virus on your computer not allowing the document to open
by pcbuddy
Poster rated this answer.
by pcbuddy
by pcbuddy
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by etoile
Answer 1 has it pretty well covered. The file is most likely damaged/corrupted - just a bad download. Just check that your version of acrobat reader is working properly by opening another .pdf document.
Good luck
by pcbuddy
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by pcbuddy
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