This article focuses on how to remove password security from multiple PDF files by Adobe Acrobat program. Sometimes it is essential to access the stored data items and to print, edit as well as copy content from Portable Document Format files in absence of the person who actually added password security onto the PDFs. Moreover, erasing passwords from one file at a time is both tiresome and troublesome.
However, before discussing the method to delete password from PDF , it is necessary to know the types of password protection that can be applied to PDF documents. Then it is easy to devise ways to remove them. In the section below are discussed the types of passwords that are usually imposed as security on Adobe Acrobat portable files.
The types of password that can be added in PDF files are:
When the query is how to remove password security from multiple PDF files then make use of Acrobat Pro. With this program passwords can be removed from PDF files in batch. However, the kinds of passwords put on the documents must be known to make PDF unlocking successful. A user can put both Document password and Permission password either individually together. Hence, while perforing the process to remove password security from multiple PDF files by Adobe Acrobat, it is essential for the user who is deleting the passwords must know which kind of password was be used.
Case 1: When security on the documents are Open Password and not Usage Restriction password, then the Open Document password must be used.
Case 2: When the security is Permission password and not user-level protection then the password that should be used to remove the security restriction is the Usage restriction password.
Case 3: When the Acrobat PDF files are protected by both the kinds of passwords that are user-level and owner-level then the password that should be used to erase the restriction is owner-level password.
The following steps must be followed to unlock PDF documents in bulk using Acrobat Pro program. At the beginning users shall have to change a preference so that Acrobat allows users to enter the password when the batch sequence is executed.
Tip: Users might wish to enable saving warnings and errors in log file as this is helpful when Acrobat fails to process a file. In such a situation users will have a report that they can make use of. To do this user can check the box with ‘Save warnings and errors in log file’ in the Preferences window.
Running the Sequence
Although running the sequence is simple and easy, it is advised that all password protected PDF documents that are to be unlocked be collected at one place. This makes the process even more easy.
To unlock PDF documents that are protected by user-level and owner-level password both, the latter must be entered and it must be correct. If an incorrect password is entered, Acrobat will not be able to open the file and an error will be prompted. Here, we have seen the solution to remove password security from multiple PDF files by Adobe Acrobat program. However, there is also another advanced utility (i.e. SysTools PDF Password Remover) that can delete the password from PDF files. However, the password must be known to the user & once the password has applied the tool will unsecure the PDF document and can create the unlocked file.
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