空白I make a readonly  word document with readonly password and modification
password in word2003,but after i open the readonly word with only inputing
the readonly password ,i can remove and change the modification password.now
my question is how to make a word document  that can't  be changed or
removed the modification password .

Short answer - it can't be done. if it can be read, it can be edited.

Also, Please do not post multiple copies of the same question into different
groups.