Open password protection is a highly secure and effective way to against unauthorized access to files. Once a password is set on a PDF file, the PDF will be reachable only to those who have the correct password.
However, it is often the case that you accidentally lose or forget your password, and part of you may be struggling for a solution. To save you time and effort, we have picked out workable ways from numerous choices, helping you to open password protected PDF without password effortlessly.
Cisdem Password Remover
Free Download Windows 11/10/8/7
Free Download macOS 10.13 or later
Before going ahead with the methods for opening a password protected PDF without password, it is necessary for you to know some facts about password protection.
Open password, as its name suggests, is a password used to prevent the opening of a file. When you’re going to send PDF documents that contains confidential and sensitive information, it is critical to ensure that only authorized people can access the files, as they could cause damage if they fall into the wrong hands. Therefore, people usually set open passwords to keep the important information safe and secure.
Yes, it is possible to open a password protected PDF without password. Although PDF passwords offer a degree of security, they are not completely immune to password cracking techniques. With the aid of a PDF password cracker, you will have a great chance of opening a password protected PDF when you don’t know the right password. But please note that only people with permission can use specialized tools to open PDF files, or it could even be illegal.
As mentioned above, a PDF password cracker can make a password protected PDF accessible, with no password provided. In a crowd of choices, Cisdem PDF Password Remover stands out due to its powerful brute force ability and ease of use.
For who: People who have a protected PDF file with password protection that is no longer needed, or who often forget or lose the password.
For what: This software is designed to crack the lost and forgotten passwords imposed on PDF files, and also remove these passwords from the PDFs, so you have no need to enter any password when opening the file next time.
How it works: The program works by trying out every possible combination of characters based on clues provided by the user about the original password, such as length, numbers, letters, etc. No matter how complex the password is, it can discover the right password with a high success rate.
How long it takes: The decryption time depends on the complexity of the password and the accuracy of the information you offered. For regular passwords, it cracks within seconds, while for long and complex passwords with various elements, it takes longer time.
Outstanding points: The process of cracking and removing passwords won’t damage the quality of PDF files, all information and data in PDF files will stay safe and secure. Besides, for your convenience, it allows you to remove passwords from multiple PDF files in one go.
Free Download Windows 11/10/8/7 Free Download macOS 10.13 or later 
An increasing number of people are dying for an online way to open password protected PDF without password, as it seems quite convenient regardless of the device used, on computer or in mobile. However, to your disappointment, after testing a variety of popular online tools, we came to the following conclusions:
If you are still interested in online PDF password crackers, here we have found a tool dedicated to recovering a document open password, that is LostMyPass. This tool offers a free service for weak passwords, and is successful in about 22% of all cases. For strongly encrypted PDF files, it would take thousands of years and fail to find the correct password.
Google Chrome, Google Drive and Gmail are said to be able to open password protected PDF. But in our test, we found that Google Chrome and Gmail require a password to open the protected PDF file.
Google Drive has a built-in feature to convert PDF to Word format, but when we uploaded the open password protected PDF and opened it with Google Docs, the program kept loading all the time.
So we can’t open password protected PDF using Google Chrome/Drive/Gmail without password.
When searching for how to open password protected PDF on the Internet, there are multiple ways shown in the results. But disappointingly, most of them are not workable, either require a password or fail to crack passwords. Only Cisdem PDF Password Remover can do an excellent job of cracking and removing the passwords from PDF documents without password. If you are the person who have forgotten or lost the password, or don’t need the password protection any more, download this software, and you will gain huge convenience from it.
Free Download Windows 11/10/8/7 Free Download macOS 10.13 or later
Carolyn has always been passionate about reading and writing, so she joined Cisdem as an editor as soon as she graduated from university. She focuses on writing how-to articles about PDF editing and conversion.
