Asked By
randysprang
1230 points
N/A
Posted on - 07/18/2011
Hi guys, I am at our office, my boss ask me to open a PDF file that is locked, I search on the internet for software that is capable of doing so, I installed Advanced PDF Password Recovery to open the locked file, an error message was displayed when I am about to open the file, it said 128-bit security v.4 encryption handler, this protection method is not supported.
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This document was created with ‘Adobe LiveCyycle Policy
(Adobe.APS[adbe.pdrl.v0]) 128-bit security v.4’ encryption handler.
This protection method is not supported.
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When I analyzed the error, I am wondering of the capabilities of this application, or does the file I open has an error, I am having a hard time isolating the problem, please comment on my issue, thanks.
Advanced PDF Password Recovery: Protection method is not supported
You can check following things before you open a file.
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First thing is to check that you have installed a up to date version of Adobe acrobat reader.
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Then you need to install the updates if there some software updates are available.
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If you are downloading the file form the network then you need to make sure that you have fully copied the file.
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Then check that the file doesn't contain some errors such as some virus or some other problem.
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Try the file on another computer and make sure that it works on that computer.
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If the file requires some password then call your boss and try to find the password.
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You can also create a recovery file for this kind of file you need to open.
I think that if you have checked all of these points then you will be able to see your file as opened.