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| PDF Password Cracker Pro user manual |
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PDF
Password Cracker Professional edition allows to search for
"owner" and "user" passwords with brute-force and dictionary
attacks, effectively optimized for speed (however, don't expect to
recover long passwords in a reasonable time with these attacks). In
addition, it has Key search attack, which guarantees the decryption
(regardless the password length and complexity) of PDF files that
use 40-bit encryption (the attack takes about 3-4 days on fast CPU
systems).
The standard security provided by PDF consists of two different
methods and two different passwords. Owner Password allows to
prevent PDF file from printing, editing (changing), selecting text
and graphics (and copying them into the Clipboard), or
adding/changing annotations and form fields; User Password locks the
file so the password is required to open or view the file. If only
owner password is set, decryption is being done instantly; decrypted
file can be opened in any PDF viewer (e.g. Adobe Acrobat Reader)
without any restrictions, i.e. with edit/copy/print/annotate
functions enabled. Alternatively, owner password can be recovered
using brute-force or dictionary attacks.
Additionally, PDF Password Cracker Pro supports "key search" attack
that allows to decrypt (in a reasonable time) PDF files with 40-bit
security regardless the password length, guaranteed. |
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Easy to use |
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Drag and drop PDF files |
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Do NOT need Adobe Acrobat software |
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Support Windows 98, ME, NT, 2000, XP, 2003, Vista Systems |
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Support PDF 1.7 (Acrobat 8.x) files, including 40-bit RC4
decryption, 128-bit RC4 decryption, AES decryption, compressed files and
unencrypted metadata |
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Support Adobe Standard 40-bit decryption, Adobe Advanced
128-bit decryption and AES decryption |
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Recovers user password required to open the file
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Brute-Force, or Dictionary attacks are used to recover the
password |
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Additional user dictionaries support, case changes, multiple
mistypes and other modifications for each dictionary word |
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Program automatically saves password search state and can
resume after a stop or a crash |
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Patterns can be used to minimize search time if any part of
the password is known |
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Non-English characters in passwords are supported |
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| $59.95 | |
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| 1.70 M | |
| USE PDF Password Cracker software |
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Registration Window:
The demo version of PDF Password Cracker Pro is a fully
functional product with all features required for testing available.
After you are convinced that the program fits your needs, you are
strongly encouraged to purchase and register your copy of the
software by acquiring a personal unlock key, the demo version is can
only decrypt the first half pages of your original PDF file.
In your evaluate period, you may click “Try” button to try this
software .
Main interface of the software:
Load: Open PDF file for
retrieve password.
Decrypt: Decrypt current PDF file.
Type of attack:
Brute-force: Brute force attack for PDF file.
Dictionary: Construct user password from a dictionary
file.
Key search: Search file key for a 40-bit encryption
PDF file, the key length is 40 bits, so the total number of keys is
2^40, or 1,099,511,627,776, the whole recovery process takes about
30 days on PIII-450 computer, and the average is just 15 days.
All caps latin (A-Z): ABCDEFGHIJKLMNOPQRSTUVWXYZ
All small latin (a-z): abcdefghjiklmnopqrstuvwxyz
All digits (0-9): 0123456789
All special symbols (!@...): `~!@#$%^&*()-_=+\|,./<>?;:'"[]{}
Space: Space character
All printable:
ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghjiklmnopqrstuvwxyz0123456789
`~!@#$%^&*()-_=+\|,./<>?;:'"[]{}
User defined characters: User defined characters for
construct passwords
Minimal password length: Minimal length for passwords.
Maximal password length: Maximal length for passwords.
Start from: First password to be tried.
End at: Last password to be tried.
Dictionary file path: Load a dictionary file for dictionary
attack.
Try all possible upper/lower case combinations: Construct
passwords from dictionary file automatically.
How to use the PDF Password
Cracker Pro product?
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Open the PDF Password Cracker Pro program by either going to
Programs, select PDF Password Cracker Pro v3.0 and click PDF
Password Cracker Pro v3.0. The interface below will display.
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Click the "Load" button to locate the file which you would
like to remove the passwords, then click the "Open" button. |
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Click the "Decrypt" button or "Start" button, then PDF
Password Cracker Pro will test the passwords for your PDF
file automatically. |
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Once PDF Password Cracker Pro retrieved the user password,
it will popup a "Save As" dialog, you may save to a normal
PDF file directly, all restrictions will be removed from
this decrypted PDF file. |
==== Known limitations ====
- PDF files protected using PDF
Merchant and EBX digital rights management schemes or 3rd party
plugins such as FileOpen, SoftLock etc cannot be decrypted.
- Brute-force attack is effective
for short passwords only, usually up to 7-8 chars. Recovering
longer ones will take too much time (months, years) even on a
very fast computer. If your file has "user" password and use
40-bit encryption, you can use Key search attack.
Note:
The program that is licensed to you is absolutely legal and you can
use it provided that you are the legal owner of all files or data
you are going to recover through the use of our software or have
permission from the legitimate owner to perform these acts. Any
illegal use of our software will be solely your responsibility.
Accordingly, you affirm that you have the legal right to access all
data, information and files that have been hidden.
You further attest that the recovered data, passwords and/or files
will not be used for any illegal purpose. Be aware password recovery
and the subsequencial data decryption of unauthorized or otherwise
illegally obtained files may constitute theft or another wrongful
action and may result in your civil and (or) criminal prosecution. |
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