"Fake" Password Creation

Sometimes it is possible to create a "fake password". It is different from the original password (and it usually looks quite odd), but it can be used instead of the original password. You can use it to remove the protection from the document or to change the existing password. Unfortunately, you can’t determine the original password this way (the only exception is the case when the password is very short and some additional conditions are met). If you have several documents protected with the same password, you’ll be able to use the same fake password to unlock all of them. The fake password is likely to contain very exotic character combinations and if you make a mistake typing it you won’t be able to use it. Therefore, fake passwords should be typed very accurately (better use the clipboard).

Learn more about password recovery methods here.