
an internal error occurred pdf was an error message
which appears when you try to open a Pdf file accompanied by
the appearance of the page
empty . Usually this case can happen
in pdf files that have been protected by a password even though they have not
completely protected. However cases more often appear in pdf files
already protected.
To overcome this problem you can take steps
improvements below:
1. Check the Version of the Adobe Reader Application that you are using and Deactivate the Protect button.
If you previously installed 2 Adobe Reader applications that
different version, try removing one version in the Control Panel. And then
reopen the Adobe Reader application then activate Protection mode on the Menu:
- Edit> Preferences> General
- Uncheck
in "Enable Protected Mode at startup" - Try opening
pdf file again that experienced an internal error occurred earlier.

2. Create a new REG_DWORD
This method is to make a protection through the registry menu on
Windows, how:
– Open Regedit.msc on your Windows run
– Navigate to HKEY_LOCAL_MACHINE SOFTWARE Policies Adobe Acrobat Reader 11.0 (depends
which version of adobe are you using) FeatureLockDown
– Create REG_DWORD new with:
Value
Name: bProtectedMode
Value
Data: 0
3. Remove and reinstall the Adobe Reader application.
If the two methods above have not been successful, I recommend Manghapus your old adobe reader application, then reinstall the new adobe reader application. Which you can download at the link below:
