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How to Recover Your PDF Password Easily

"PDF" is short for "Portable Document Format". It’s developed in the early 1990s as a way to share documents among computer users of fundamentally different platforms who may not have access to mutually-compatible application software. It has gained worldwide fame in the past two decades since published in 1993.

But if you forget the PDF file password, what will you do? How to recover pdf password? That's a problem as significant as PDF’s publication.In addition, the problem is quite universal in our life. It is more valuable to provide a solution than avoid the problem ? And the solution is as follows.

PDF Password Rescuer offers a professional set of features wrapped in a very user-friendly form that is easy to master. You can easily recover your lost or forgotten pdf password as long as you give it a try according to the step-by-step using guide below. Come on, just have a go.

1. Download Daossoft PDF Password Recovery Software

Download the trial version below and install it.

Free Try PDF Password Recovery Tool

2. Select and Open the Desired Document

Press the "Open" button (or select the "File | Open File" menu item) to select a password-lost PDF file.

Open pdf file

In the Open File Dialog, select the password-lost pdf file and click "Open".

Select pdf file

Step3. Choose the Optimized Attack Mode to Recover

There are four attack types in our program to help you recover your password. They are Brute-force Attack, Mask Attack, Dictionary Attack and Smart Attack.

What is the differences among Brute-force Attack, Mask Attack, Dictionary Attack and Smart Attack?

Mask Attack: It needs a mask to help you recover the password.A mask is some characters in your lost or forgotten password you still remember.The program will regard the given mask as one character to accelerate the process of decryption.

Brute-force Attack:This attack type allows you to open the "Range" tabbar and set the "Brute-force range option" as needed before you click the "Start" button to start the recovery.

Dictionary Attack:Before you use the Dictionary Attack type, a dictionary should be made though a dictionary generator,which can guide you to make an effective dictionary step by step according to your request.

Smart Attack: It allows you to start the recovery without any manual settings.Just choose the "Smart Attack" on the tabbar and then click the "Start" button to begin the recovery.

So how can you make the right choice? Some suggestions for you are as follows :

If you remember some symbols of the password still, please choose Mask Attack. Otherwise, it’s quite smart for you to choose Smart Attack at first.

Select Attack

Step 4. Attack Settings

Option 1: In these two attack types, including Brute-force Attack and Mask Attack, you are supposed to tick the "Brute-force range options" before you start the password recovery ,and the program will try all possible combinations in the specified range you have set.

Setting Attack

"Length" Settings

Although you have forgotten the password, the password length might be clear in your mind in most cases. So just set the length range you are sure of.

Setting Password length

Option 2:If you remember some charaters of your previous password, please make the charaters a mask , which is really helpful to the password recovery with Mask Attack.

Select Mask Attack

Option 3: If you choose Dictionary Attack, click "Dictionary" on the tabbar.

Select Dictionary Attack

"Dictionary" Settings:

Firstly browse and select the dictionary file(*.dic or *.txt) prepared in advance,  choose an option "Convert to OEM encoding", "Smart mutations" or "Try all possible upper/lower case combinations"  according to your request.

Setting Dictionary Attack

Step 5. Start to recover

Press "Start" button to start the attack, soon you will get your lost PDF password.

Recover PDF Password

Step 6.Get Back Your Password

After the password recovery is completed, the dialog box will be displayed with the password for you. Just click "Copy" button to get it.

Get Back PDF Password