How to Recover PDF Password
It is great for every
user to be able to protect their PDF files with a password, provided they do
not forget that given password. Losing a PDF password can be a common mistake,
but it could be turned into a blunder if a user is ignorant, with no knowledge
that there are still ways exists to recover their passwords, with the right
tools and recovery options it does not have to be such a fuss. There are
multiple websites on the internet which cater to this topic which enables any
user to recover their PDF passwords through simple follow through methods.
There are four particular sites you should
always keep an eye out for:
1. Passper
Passper for PDF prides
itself for its quick and easy to access locked PDFs by retrieving the document
open password or taking way its restrictions regarding printing and editing.
The site allows their
users, a free trial, and a thirty days money-back guarantee if the user wishes
to opt-out. It allows for flexibility and ample time to consider if it is worth
paying for while simultaneously using its services.
A user only needs to
do the following steps:
- Download and install Passper
for PDF, and select the Recover Passwords option.
- Add the password-protected PDF
file by pressing Add and browse to the location of the
PDF file. Then the user must select one of the four main attack options listed
below.
- Recover PDF Password, once the
prerequisites are deal with, click on Recover and the
process started. The speed of the process depends on the method chosen.
Passper offers two
steps to recover PDF password. Recover Document Open Password and Remove
Restrictions.
The latter of which
outrightly removes the password so that the user can quickly gain access. The
former method is a bit lengthier and involves a series of steps if the user
intends to recover PDF password:
- Dictionary Attack – This method
runs as an algorithm in which it runs all the combinations of characters
on the default dictionary until the password is found. If the user wishes,
they could also import a dictionary file.
- Combination Attack – This
method runs a trial regarding all combinations of the characters the user
chooses to find the appropriate password.
- Mask Attack – This method
enables the user to retrieve their password swiftly, provided that the
user possesses prior knowledge of it, such as the length of the password.
- Brute Force Attack – This
technique takes time, as it tries all possible combinations of all
characters until it recovers the user’s password.
- It boasts the highest success
rate, as it uses a smart algorithm.
- Its PDF password recovery speed
is based on the CPU and GPU acceleration technology, allowing for it to
recover PDF passwords faster.
- It removes restrictions in a
snap.
- It saves recovery progress,
allowing the user to stop and save the progress, and then allowing the
user to retrieve the password next time.
- Easy to use, allowing the user
to remove a password in just a few steps.
- Removes password without
affecting data.
- Recommended by Cult of Mac,
Makeuseof, Macworld, Payette forward.
I am wondering what
others had to say about Passer?
“Passper for PDF is
not only powerful but also has an intuitive interface, which helps you walk
through the whole process without getting confused.”
2. iSeePassword
iSeePassword Dr. PDF
is another PDF password recovery tool which retrieves the user’s lost valuable
password while removing restrictions for both Mac and Windows.
This PDF password
recovery software uses:
- Brute force Attack.
- Brute-force with Mask Attack
which helps to find the user’s password amongst in their range.
- Dictionary Attack.
iSeePassword’s
specialty consists of a brute force attack, mask attack, and dictionary attack.
This tool also uses multi-core CPU processing which will remarkably boost the
speed without making the computer slow, GPU acceleration which improves upon
the CPU performance critically, make the process 10 times faster, allowing for
the import of PDF files to the program, and also saving the log file every five
minutes so that the user can continue their last searching history.
The user only needs to
run four simple steps:
- Install and run the program and
choose the Recover Open password from PDF option.
- Import the PDF file and choose
the right type of password attack.
- Choose attack type by clicking
the start button, so that the software retrieves the lost PDF password in
the provided range.
The software boasts:
- The highest recovery rate.
- Ease of use.
- 100% security.
- A free trial.
- The option to opt for a
lifetime free upgrade.
- Secure shopping.
- Removing password without
affecting existing data.
- Removal of restrictions on
multiple spreads of data.
It does come with its
drawbacks as well:
- The software could suddenly
crash after launching.
- The monthly subscription model
asks for a hefty price compared to its competitors.
- Its free version has several
restrictions.
This program does not
offer any money-back guarantee either.
3. LostMyPass
The third entry on
this list LostMyPass is the way to go if the user wants an inexpensive service.
LostMyPass offers a cloud PDF password recovery service in which the user does
not have to install any software, weak password recovery is free of charge, and
the user only pays for accomplished password recovery.
The success
probability for this software depends on the type of process. The free version
is a weaker system, and it does not offer a high probability of success. The
robust password recovery process takes up to a day, and the password retrieves
in more than half the cases. It is through their brute force which boasts a
100% recovery.
Since the service is
based on a cloud, the user only needs to upload an encrypted file to their
website and wait. LostMyPass’s computing cluster allows their algorithm to
perform vast amounts of complicated calculations in just hours, which is a
statistic no house computer could match.
The program offers:
- Recovery by a dictionary which
searches easy to remember passwords based on the user’s pet name or date
of birth.
- A PDF password remover.
- A password generator that comes
up with a cocktail of numbers, letters, and symbols, offering the user a
secure lock.
- A brute force calculator which
estimates how many passwords needed to be check.
- A free service which searches a
database of millions of the most used passwords.
- The paid service searches the
web through more than twenty billion passwords.
They offer a flexible
payment system which consists of PayPal and bitcoin too.
However, they do have
some drawbacks:
- There is no way to use your
home computer, depending on the user’s internet connection, the PDF
password recovery could take hours upon hours, if not days.
- Adding fuel to the fire, if the
internet connection breaks the process, it will be interrupted.
- There could be a disconnect
between the user and the recovery system due to the cloud service. The
user must be sure about how much information they give to this source.
- The free service is only
viable, around 22% of the time.
The user wastes time
if the free version fails.
4. Password-Online
The last entry
recommended is Password-Online. This service has been recovering passwords for
the past seven years. It only asks for payment once a password has been
recovered, and proof in the form of a picture of the user’s document is sent to
them.
- 100% Guaranteed decryption for
40bit encryption.
- The user does not need to
install any other software.
- It is used by government
agencies, people in business, and forensics at an international scale.
- It allows the user to see how
long it would take to using their brute force password simulator.
- They also repair the document;
in case any damage has been done.
The methods they use
for PDF password recovery involve:
- Instant password recovery
online which works on weak encryptions such as older word or excel files.
- Resetting the user’s password.
- Brute force attack.
- Dictionary attack.
- Variation in password. This is
a scenario in which the password was possibly typed wrong, and the system
works with the knowledge already input by the user to speed up the
process.
- Plain text password attacks.
This technique is applied to zip archives.
This program comes
with its fair share of disadvantages too:
- Even the simplest encryption
recoveries are slow.
- 7zip files take a couple of
days and only have a 38% chance of success.
- RAR files can take 1-2 days
with only a 57% success.
The verified pick
would be Passper as it offers a wide area of options which make find the lost
password in a matter of seconds.
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