If you lost your Document password in Pages, there is a way to recover the password but only if it's a recent recent Document, the system password settings are correct and most importantly, you are the System Administrator.
In the Applications Icon on the Dock, open your Utilities File and click on "Keychain Access." After it opens and in the far left column under "Category," click on "...Passwords." If they are not Alphabetized already, click "NAME" at the top of the column it will alphabetize all the Passwords Names. Find "Password.pages," click on and it will bring up the "ATTRIBUTES/ACCESS CONTROL" and click the "SHOW PASSWORD" box. Enter the System Password and it will show you the password.
I heard there is another way to hack the password through "TERMINAL" but it's very involved and rather lengthy. I lost a password for an older document and hope that someone has the knowledge to open it by using another program or the steps necessary to open it through Terminal.
But Come'on Apple!... There has to be a way to open the Document. If Team *GhostShell can Hack and Publish one million records, allegedly from banks, government agencies, consulting firms and others, a simple document should be opened if the password is lost or forgotton. I believe privacy concerns will not allow any Apple Employee to help but there should be a way if the System Administrator on a single system lost or forgot their password.
As told before, I didn't create the password but my father. I'll asked him to have a look on your explanation. However, I'm pretty sure it's an old file, older then his computer. But I keep my fingers crossed !
I already tried using terminal to show the content of package. I also tried virtually zipping and unzipping. but unable to perform.
I totally agree with your last sentences ; and, really, apple would think a way to improve all it's cloud files management system to be more efficient and helpfull for users... The proof is probably written by Jerrold Green1 : "You are not the first person to come with that problem".
Mine is a bit weird.
At first, I set a password to a specific document, and been using the same password for almost a thousand time, BUT today I tried to go in my document, but Pages won't let me in and it said it's a wrong password (?!), plus I NEVER change my password and how come suddenly my password didn't work....