How to recover forgot PDF password
PDF Password Recovery Tool
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How to recover passwords of PDF file
Recovery Toolbox for PDF Password
Recovery Toolbox for PDF Password recover password for encrypted or password-protected Adobe Acrobat documents or PDF files
PDF documents password recovery software
How to remove a password from a PDF file. The step-by-step manual for the recovery of a forgotten password for an Acrobat/Reader document:
- Download, install and run Recovery Toolbox for PDF Password from here: https://pdf-password.recoverytoolbox.com/download/RecoveryToolboxForPDFPasswordInstall.exe
- Choose the Adobe Reader/Acrobat document *.pdf file that you require the password to.
- Select the type of password that you want to crack: the user password or the password of the document’s owner.
- Enter the available password information using the masks designer wizard. This will reduce the time required to search for passwords.
- Hacking of the password with the help of the brute force function.
Now you can remove the pdf password from a protected Acrobat document using this procedure.
How to recover a PDF password
Recovery Toolbox for PDF Password is an extremely flexible and powerful solution for efficient recovery of PDF file passwords. The program is lightweight, has a highly intuitive interface and provides everything necessary for recovering passwords from PDF files encrypted by different versions of PDF file protection systems.
The recovery process consists of 5 distinct steps with specific actions required on each of them:
- Selection of the source PDF file
That's where you can select a file the program will pick a password for.
- Password type selection
That's where you select the type of password to be recovered: user password or owner password.
- Password Wizard / Mask Constructor
That's where you define how the password will be recovered. Your choices here affect the speed of password recovery and its general feasibility.
- Password recovery
At this step, the program calculates new hash values and compares them with the hash values in the file according to the password recovery settings defined on step 3. The software displays the current recovery parameters, such as the time elapsed and left, the number of threads it uses, its performance, the protection system used in the file and, of course, the current progress with up to hundredths of percent accuracy.
- Results window / End of recovery
This is the end of the password recovery process. The program will either show you the recovered password or report of a failed attempt to recover it.
As you can see, the process is fairly straightforward and all you need to do is to carefully read on-screen instructions, especially the ones about defining a password recovery pattern. This will help you achieve the desired result faster. Since the process of setting recovery options is fairly complex, it is highly recommended that you read the usage manual prior to using the program.
Ultra-flexible password recovery
PDF files are a universal means of document exchange used by millions of companies and individuals across the world. PDF files are compact, can be opened on a wide range of devices, both stationary and mobile, and can be easily and quickly shared online. PDF files are read-only by default, so users cannot change their content, but if you are looking for even more protection for your sensitive PDF documents, you can use additional PDF password protection. It will reliably hide your documents from prying eyes, but what if you forget a password or receive an important document, but no password for it? If you know or remember any part of the password, you will need a solution like Recovery Toolbox for PDF Password to get a chance to regain access to the document.
Recovery Toolbox for PDF Password is an advanced recovery tool for password-protected Adobe PDF files. The software supports all types of password encryption used in PDF files and offers flexible password recovery options. Prior to proceeding with password recovery, make sure you understand the process by reading the information below.
Recovery Toolbox for PDF Password allows you to recover passwords in two modes: Password Wizard and Mask Constructor. The latter mode is intended for advanced users and can be activated in the program menu. By default, the Password Wizard mode is used. Compared with the Password Wizard mode, Mask Constructor offers 2-3 times as many password recovery options and enables users to minimize the password recovery time in certain situations. Both modes allow you to pause or suspend the recovery process at any moment. Suspending the process saves the current progress to the file and allows you to resume it in the future. Note that this ability of the program is not based on the file location. Recovery Toolbox for PDF Password will resume the process even if you reopen the same file moved to another folder or drive.
Being a CPU-intensive tool (by definition), Recovery Toolbox for PDF Password is capable of utilizing as many CPU cores (physical and virtual) as your system has, so the faster and more advanced it is, the faster you will get your passwords recovered. Note that the nature of password recovery implies that the process may take hours and even days in some cases, depending on the options you select, the speed of your system and, of course, the complexity of the password being recovered.
The demo version of the program will only display the first 3 characters of a recovered password. To remove the limitation, purchase the full version. If, for some reason, the program fails to recover a password from your PDF file, it will show a corresponding notification. In this case, you can send the PDF file you are working with to the program developers by clicking the Send file to developers button at the bottom of the screen (or using the Send source file command from the program menu). You will also have to provide information about the password along with the file to enable the program authors to help you recover it.
If you are looking for an ultimate password reconstruction tool for Adobe PDF files, few products would be even nearly as functional, fast and efficient as Recovery Toolbox for PDF Password!
Requirements:
- Windows 98/Me/2000/XP/Vista/7/8/10/11 or Windows Server 2003/2008/2012/2016 and above
Screenshots:
Choose the Adobe Reader/Acrobat document *.pdf file that you require the password to
Select the type of password that you want to crack: the user password or the password of the document’s owner
Hacking of the password with the help of the brute force function
Recovery log
How it Works:
Download software from website.
Start Install software:
- Press on downloaded installation file in browser
- Select a downloaded installation file in Windows Explorer and press Enter or double click on it.
Please confirm warning message:
Run installation wizard:
Run program:
- Double click on icon on desktop
or
- Select from main menu: Start | Programs | Recovery Toolbox for PDF Password | Recovery Toolbox for PDF Password
Choose the Adobe Reader/Acrobat document *.pdf file that you require the password to.
Select the type of password that you want to crack: the user password or the password of the document’s owner.
Enter the available password information using the masks designer wizard. This will reduce the time required to search for passwords.
Hacking of the password with the help of the brute force function.
The final result of the password cracking. The program either displays the recovered password or reports on the last page that it cannot be recovered.
Online help:
As simple and intuitive as Recovery Toolbox for PDF Password (Download) may seem, it still requires configuration according to the recovery mode selected - and this process may be quite confusing for first-time users. Please make sure you have read and understood this usage manual prior to contacting our support department. The document below contains a comprehensive description of every feature found in the program and the basics of its operation.
Recovery Toolbox for PDF Password is a step-by-step wizard that guides you through the process and requires a minimum of efforts on your end. However, due to the rather complex nature of password reconstruction, this wizard is more complicated than the ones used in other Recovery Toolbox and therefore requires a more detailed description of its options.
The general rule of thumb is to follow on-screen instructions, complete the necessary actions and press the Next button to proceed to the next step of the wizard. You can always go back using the Back button to change settings or choose another file for password reconstruction.
REMEMBER: Recovery Toolbox for PDF Password will hardly help you(within a reasonable time frame) if you don't know anything about the password you are trying to recover. This tool is intended for reconstructing partially known passwords, so it is initially assumed that you know at least one of its parts or most of it, but are not sure about a few characters. Apparently, the more you know about the password, the faster and more hassle-free the process will be.
Program interface and advanced options
The main menu of Recovery Toolbox for PDF Password provides access to the following commands:
- File – Exit
- Use this command to quit the program.
- Options – Send source file
- Attaches the currently opened file to a new message created in the default mail program. Please note that the default email client must be defined in the system for this function to work properly.
IMPORTANT: When submitting a password-protected file to the program developers, make sure to include EACH AND EVERY known detail about the password in question. This will GREATLY facilitate the work of our experts.
- Options – Clear source file list
- Clears the list of previously used source files.
- Options – Advanced
- This menu contains two important options related to the general operation of the program:
- Multi-threading
- This option defines how your CPU is utilized by the program. When the option is set to Auto-detect, the program automatically detects available logical CPU cores and uses them for calculations. You can also uncheck the automatic detection option and limit the number of cores used by manually specifying the necessary number in the corresponding field. This setting is enabled by default.
- Use mask constructor instead of password wizard
- The use of a mask constructor instead of the regular wizard gives you a lot more flexibility and control over the password reconstruction process, but requires a good understanding of the password structure and brute force password attacks. Use this option if you feel confident in what you are doing and believe that manual configuration of the password recovery engine will speed things up. This setting is disabled by default.
The difference between these two operating modes will be explained in detail below.
- Help
- The Help section contains links to the program's help section, its website, the order page, the program registration dialog and the program information page.
Password protection of PDF files
Unlike the majority of other document types, PDF files can be protected with two passwords at the same time: User Password and Owner Password. The user password is intended for opening and decrypting the content of a PDF file. The owner password is a lower-level password that enables you to edit the access permissions of a document (for instance, to allow copying of the document content to the clipboard).
At the moment, there are four versions of the password protection system used in PDF files:
- R2
- The oldest one. Uses RC4 encryption with a 40-bit key for content protection.
- R3
- An improved version of R2 with a 128-bit key.
- R4
- A newer generation of the protection system using a 128-bit AES algorithm.
- R5
- The most recent version using 256-bit AES encryption.
There are three important aspects of the password recovery process in Recovery Toolbox for PDF Password:
- PDF files contain hashes of both passwords that are used for quick password validation. Recovery Toolbox for PDF Password uses theses hash values for recovering passwords.
- Unlike in the latest R5 version, in versions R2 through R4, the user password and the owner password are tightly interconnected and you cannot check the validity of the owner password without entering the user password. This is why you will need to manually enter the user password when restoring the owner password from older PDF files with R2-R4 protection systems
- R5 passwords are the easiest to recover, despite the fact that it's the latest version of the protection system. R2 passwords take a bit longer to recover, while R3 and R4 passwords take incomparably (dozens of times) longer to find.
Password recovery
The password recovery process is identical for both modes, except for Step 2. The differences will be explained below.
The step-by-step manual for Recovery Toolbox for PDF Password
The first step allows you to specify the file you want to recover a password for. This can be done in three ways. You can simply type its name and path into the input field located in the center of the program window or use the standard Windows open file dialog. You can also choose a previously used PDF file from the dropdown list that can be opened by clicking a small button with a downward arrow in the right part of the input field. Once you've entered the file name, you can proceed to the next step by clicking the Next button at the bottom of the window.
At this step, the program displays basic information about the file (file name, PDF version and version of protection used) and prompts you to select the recovery mode - that is, select the password that will be recovered. As explained above, it's either the user password or the owner password. If you want to restore the owner password for a file using earlier versions of the protection system (R2-R4), you will need to enter the user password as well (if it is set for this document),sincetheyarecloselyinterconnected. Check the Show password option to see the password as you type it.
3. Password recovery - Password Wizard mode
The password recovery wizard is a questionnaire that helps you define known or nearly known parts of the password and narrow down the search range to minimize the password reconstruction time. The wizard enables you to break the password into several parts and characterize each part as known or unknown. Each part must be something you can or cannot remember. For instance, if you know that the password starts with John and ends with something else, you should break the password into two parts. The program will ask you to enter each of the known parts. The password element entry screen also lets you specify whether the entered part contains characters in the right case or not (the ...but I am not sure about the letter cases option). The option works for Latin characters only.
For unknown parts, the user can specify the characters that it may contain (small and capital Latin characters, numbers, special characters, spaces) and their length. Apparently, the shorter their length is, the faster the program will be able to calculate and try all possible combinations, so always try to use the narrowest range possible. You can choose one of the predefined range values, set your own range (I can set the length range myself) or - best of all - specify the exact length value (I remember this part length exactly). Once you are done describing the password parts, click Close to close the sub-wizard and go back to the current step. Once there, click Next to proceed to the next step of the wizard.
4. Password recovery - Mask Constructor mode
The Mask Constructor mode allows you to configure the same recovery settings as in the Password Wizard mode, but provides a lot more flexibility and control over the process.
In this mode, the password can be composed of as many as 6 parts that are represented by 6 elements displayed on the mask construction screen. Parts can be swapped and dragged into any position using the mouse. You can click each element representing a part of the password to modify its parameters. Unused elements will be ignored during the password generation process.
The value of each part can be either Mostly unknown, A well-known text value or Some value from list.
For a Mostly unknown part type, users can specify the character types (or specific characters) it can be comprised of and its length.
For A well-known text value part type, you can enter a specific text value for this password part and specify whether character cases may vary by checking a corresponding option.
Finally, a Some value from list part type contains a user-defined list of possible values. Values can also be loaded from a text file.
For each of the above password part types, you can enable the ...and this part may also be absent option, which will allow the program to skip it altogether while generating possible character sequences.
A general list of instructions on using this feature is available on the Password Mask Constructor page.
Once the password reconstruction template has been defined either in the Password Wizard or Mask Constructor mode, the actual password generation process starts. By default, the software uses all available CPU resources (cores) for calculating hash values, which may affect the performance of the system and render other programs nearly or completely unusable. To limit the use of your computer's resources, use the Multi-threading option in the Options – Advanced menu.
Recovery Toolbox for PDF Password displays the following information during the password generation process:
- File name:
- the name of the PDF file.
- Recovery mode:
- the type of password being recovered.
- Protection:
- the type of password protection system used in the file (according to Adobe's definition).
- Progress:
- a per cent value of the current password recovery progress.
- Password per second:
- an estimated number of passwords generated by the program per second.
- Threads running:
- the number of logical CPU cores used involved in the calculation process.
- Time elapsed:
- the duration of the process.
- Time left:
- the estimated time till the end of the process. To calculate this value, the program uses statistical data about the password generation speed over the last 5 minutes. However, this value will not be displayed until 30 seconds have passed since the start of the process. Instead, the program will display a note about performance testing.
Password recovery may last hours and even days, depending on the length of the password, the characters used in it, the number of known characters, the speed of your computer and other factors. This is exactly why we made it possible to temporarily stop the process, save the progress and resume the work of the program in the future without losing the results of previous calculations.
The state of the password generation process is saved individually for each file every 10 seconds. It's also saved whenever the Pause and Suspend buttons are pressed or the program is closed using the Exit command or by closing the program window. You can restart your system, shut it down and do whatever you need, even move the file to another drive - the current progress value will not be lost, since it's associated with this specific file using unique file identifiers. However, if you press Cancel or the program fails to find the password in the Password Wizard mode, the progress value will be reset and you will have to start all over again next time you load the same file.
Note that a failure to reconstruct a password after the completion of a password reconstruction session will always mean one thing - insufficient or incorrect input data. There are no other reasons that may affect the chance of success in this case, so it may be a good idea to revise the recovery options and try again if Recovery Toolbox for PDF Password fails to reconstruct a password.
Unlike the full version, the demo version of the program displays 3 initial characters of the password only. If the program fails to recover the password, it will show a corresponding notification.
Buying Recovery Toolbox for PDF Password:
- An email with a registration code and instructions for activating this code will be sent to the user immediately after the payment confirmation.
- An email with a registration code will be sent from several different mail servers to prevent messages from appearing in SPAM filters. Accordingly, a possible duplication of registration letters received in the user's mailbox.
- To activate the registration code, you need to run the application in Windows under a user with Administrator rights.
- The number of Personal, Business or Site licenses activated simultaneously must not exceed the number of purchased licenses.
- We sell software via registration services PayPro Global and Noventiq. That is why not Recovery Toolbox, but the corresponding company will be specified in the payment documents.
The purchased registration key is valid for all 2.x versions of Recovery Toolbox for PDF Password.
Buying the License Renewal:
Payment Services:
PayPro Global (PayPro Global, Inc., 250 The East Mall street, Etobicoke, ON Canada, M9B 0A9) is the fastest growing eCommerce company that develops customized solutions to help software producers to easily and effectively sell software online. PayPro Global supports more than one hundred currencies, all major credit cards, and a wide variety of payment options. PayPro Global offers efficient customer support 24/7 and provides personal attention to customers having special requirements.
Noventiq online store for licensed software opened in 2004. Noventiq offers customers over 15,000 programs from 3,000 developers, provides fast delivery (electronic and physical), accepts 20 payment methods, and includes a cumulative discount system. Noventiq specialists provide customers with all the necessary advice for purchasing licensed software. Selling software is our profession!
Resources:
- PDF on Wikipedia: https://en.wikipedia.org/wiki/PDF
- Official website of Adobe Acrobat: https://www.adobe.com/uk/acrobat.html
Victor G. Bobrov, Senior Software Engineer.
MCSD, MCDBA
An expert in PDF password recovery with 20 years of experience.
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