Monday, April 19, 2010

Remove password from word documents


This article is addressed to those users who are unfamiliar
with Word security model and would like to know more about Word passwords.

Three different types of passwords could be found in Word documents.



Word password types are:

1. Password to open the document 




To prevent unauthorized users from opening a document
at all, you can assign this type of password.
To assign a password to your document choose Option on
the Tools menu and than Save tab (see the
following screenshot)


Word password recovery article - password to open screen1


If a user tries to open protected document the following dialog box appears:


Word password recovery article - password to open screen2


Users who don't know the password cannot open your document.

2. Password to modify

To assign modified password to your document choose Option
on the Tools menu and than Save tab (see the
following screenshot)


Word password recovery article - password to modify screen1


To allow others to open the document but to allow only authorized users
to make changes to it, you can assign a password for modifying the document.
If you try to open a document protected with such type of password the
following dialog box appears:


Word password recovery article - password to modify screen2








You have to enter the password and open your document or open your document
in read-only mode. By-the-way, you can open the document in read-only
mode, remove password to modify it and perform "Save As" menu
command. Then delete original Word document and rename saved document:
it is now unprotected.

3. Document protection password


To assign this password choose Protect documents on
Tools 
menu. The following dialog box appears:


Word password recovery article - document protection password screen1


Vba modules

Word document can include VBA modules (VBA stands for Visual Basic for
Applications)
with macros in it. VBA modules can be protected by password too. To assign
VBA password click right mouse button on the project and choose Protection
tab
 on the Properties menu (see the following
screenshots).


Word password recovery article - VBA password screen1


Word password recovery article - VBA password screen2








How to recover Word Passwords












1) Password to open


There are several cases:



1) Word2.0, Word 6.0 and Word 95 have weak and unreliable
protection. Password could be recovered immediately. Document must contain
enough text inside (at least one page) to allow password recovery (because
it is based on statistical methods). If there is not enough text in your
document Word Password may fail to recover the password.



2) Word 97 and Word 2000 has improved password
protection.

There are two ways to recover Word password in this case.
The first one is to search all of the password variants (brute
force
 or smart force attack) or dictionary
search
. This method has good results in case of short password, but
you can't recover long and complex password using this way.

In case of complex and long password it is better to use Express password
recovery. Express password recovery
is a unique recovery method that guarantees successful password recovery
regardless of password length. Note that Express Recovery is applicable
for passwords to open only.



Note on Office XP, 2003

You can use Express Recovery to recover Office XP documents if only they
were saved in default (Office 97/2000 compatible) encryption mode. If
a document has been saved in advanced encryption mode, Express Recovery
will not work.



3) Word 2002 (XP), 2003 has opportunity
to choose encryption mode - weak protection as in old versions, standard
(used by default) as in Word 97/2000 and several advanced encryption modes.
Express recovery doesn't work with advanced encryption modes. File password
protected in the advanced mode can not be opened in the previous Word
versions.



Special note.
French versions of Word (any version) have weak protection (the
same as Word 2.0/ 6.0/95). This is because of French law that does not
allow encryption.



Attention!
If you protect your document with several passwords and one of them is
password to open first you have to recover password to open and then recover
other passwords.


4) Passwords to open are extremely hard
to break in Word 2007. You can find more information about
password recovery for Word 2007 here.



2) Password to modify, document password protection.

It's not possible to recover these passwords but our program Word Password
can modify document to delete the passwords.



3) VBA module passwords.

Note. Word
Password is not able to recover (crack) VBA passwords. There is a special
program to crack VBA passwords - VBA Password.
If you have two passwords in your document - VBA password and any type
of Word password and forgot both of them you need two modules to recover
passwords - VBA Password module and Word Password module.


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3 comments: on "Remove password from word documents"

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