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How to remove protection from a PDF file? How does copy protection work for PDF files? Easy ways to remove password from PDF file

Printing a secure PDF is impossible without knowledge "Password for changing access rights"(or "Master password"). This is one of the restrictions that this password imposes.

If you don't know Master password and cannot print a protected PDF - you will need a program that will decrypt the PDF file, remove the password and remove all restrictions on actions with the file.

We, at Passcovery, have created, tested and are proud to offer you such a program - Accent PDF Password Recovery.

AccentPPR instantly removes Master password from any PDF file and removes all restrictions from it. AccentPPR also restores at very high speed "Password to open document"(or "User Password").

How to Unblock Printing of Secure PDF

You are just a few steps away from being able to print any secure PDF document:

Step 1: Download and install AccentPPR. The program distribution is digitally signed by our company and does not contain any viruses or hidden activity:

Step 2: Launch PPR and select a protected PDF document. The program will find out what protection is installed in the document and if it detects "Master password", it will offer to decrypt the document, remove the password and remove all restrictions:

Step 3. Save the decrypted PDF document. Just specify the folder on your computer where AccentPPR will save the decrypted PDF file without password protection:

Step 4: Print the previously secured PDF. The program will report the successful saving of the decrypted PDF file and display a link to it. Click on it and the PDF document will open in Adobe Acrobat. Print PDF - there is no more security in it!

PDF password protection

Adobe PDF uses two types of password protection to protect data:

  • Password for opening the document (User Password). This password completely blocks access to the PDF document. Not knowing User password The document cannot be opened. AccentPPR offers three types of attacks against a given password.
  • Password for changing access rights (Master Password). The password limits the actions that can be performed on the PDF document. It can be opened and read, but prohibited actions such as printing a secure PDF cannot be performed. AccentPPR instantly removes Master password of any complexity.

Benefits of Accent PDF Password Recovery

  • Full support for PDF documents created in Acrobat 1.0 - Acrobat XI
  • instant removal Password for changing access rights
  • highest recovery rate Password to open PDF document on CPU
  • various tricks to save time searching for a password
  • easy-to-use solution, ready to use immediately after installation

VIDEO: Quick PDF password recovery with AccentPPR

Let's start with the question: why are files blocked at all? Authors of pdf files do this to protect the copyright of their material. Thus, protect yours from copying, printing, editing, or making any unauthorized changes.

Many users have encountered the problem of being unable to read or print any PDF file. And sometimes it is very necessary. For example, you downloaded some electronic publication in PDF format and want to print it so that you can read the text from paper and not from a monitor. In this case, the file is protected from printing – “Print: Do not allow”.

Or another case - some book is distributed exclusively with a password, and you want to read it. But this is impossible due to the fact that this document is prohibited from reading. Unlocking can help in both of these cases, but not always. If you set a good administrator password and a password for opening pdf, then most likely nothing will work.

Many people do not like to install programs on their computer unless absolutely necessary; they prefer to use online services. Let's look at several online services designed specifically to unlock PDF. Let's briefly look at 3 such services.

1) http://www.pdfunlock.com

A very interesting service with simple functionality. Your task is to select the required file using the “My Computer” button (number 1 in Fig. 1). And then press the “Unlock!” button (in Russian “Open”, number 2 in Fig. 1). The unlocking time will depend on the file size.

Rice. 1 Unlocking a pdf file using the online service pdfunlock.com

The main drawback of this service is that some e-books cannot be unlocked.

2) http://freemypdf.com

Also quite a popular service for unlocking PDF. To begin, select the file (number 1 in Fig. 2), and then click on the “Do it!” button. (number 2 in Fig. 1). After some time, it will be possible to download the unlocked version of the file, if, of course, it is unlocked.
Rice. 2 Online service freemypdf.com

A distinctive feature of this service is the ability to upload only files not exceeding 250 MB. Another feature is that the service will not unlock a password-protected PDF file. In cases where there is a password, you are prompted to follow the PDFCrack link to download the corresponding program. The link leads to the page http://pdfcrack.sourceforge.net/

3) http://smallpdf.com/ru/unlock-pdf

This online service differs from the other two above in that it has Russian language. On the main page of the service you can read:

Find the password-protected PDF and download it. If a file does not have strong encryption, its protection will be removed in a matter of seconds and it will be possible to download it. If the file is strongly encrypted, it can only be opened by entering the correct password.


Rice. 3 Online service smallpdf.com in Russian for unlocking PDF

You can upload a pdf file from your computer by clicking on the “Select file” button (number 1 in Fig. 3). If everything goes well, the “You can save the file” button will appear, which will allow you to receive the unlocked file on your computer.

P.S. Other useful online services.

Instructions

Download a special program to your computer in order to . For example, go to the website http://ru.software-free-download.net/archives/1090 and download the A-Pdf Password Security program. This program allows you to extract a password from a pdf file quickly enough, regardless of the length of the password. It can also install protection on your PDF documents. For the pdf, click the "Free Download Now" link. Install the program on your computer and run it. Next, select the option you want to use. To set a password or protection, select the Single PDF Document Security command, to remove protection and password from the pdf file, select the Batch PDF Documents Security option, click the “Next” button.

Click the "Add" button and select a file from your computer to remove the password from the pdf, click the "Open" button. If you have multiple files that need to be unlocked, then select a folder using the Add dir button. Click the “Next” button; the window that opens will indicate what protection is applied to this file. Select the required option, for example, “Show password to open document” and click next. The password will be displayed in the next window.

Download and install the PDF Unlocker program, you can download it from the website http://www.pdfunlock.com/. Install the program on your computer, run it, select trial mode to unlock the pdf file. In the program window, in the Select pdf file option, click the Browse button and select the file you want to unlock. The program will display the protection levels for the given file. Next, select the folder in which you want to save the document resulting from the unlocking. To do this, in the Select Destination field, click Browse and select the path to the folder. After that, click the Unlock Pdf button, the unlocked file will be saved in the specified folder.

Sources:

  • how to remove protection from a pdf document

PDF formats are very easy to read. Information presented in this form is perceived much better than on a bare sheet of text editor. Sometimes there is a problem with protecting such files from copying. This is a solvable problem.

Instructions

Download and install a special program on your personal computer to unlock the pdf file. A-PDFPasswordSecurity is considered the most popular and convenient. You can download it on the official website of the developers at www.a-pdf.com.

After the download is complete, install it on your personal computer. This program will not only allow you to quickly unlock a pdf file, but will also install its own protection on a document of this type, if you wish.

Launch the A-PDF Password Security application. Use it to open the file you want to unlock. To do this, click the “Open” button on the toolbar and select the desired file. If you need to unlock several files at once, you can select an entire directory. All files will be downloaded and ready to go. Next, select the function you want to apply.

Removing a password from a document can be useful in many situations. For example, the user may need to convert a pdf, print it, or open it in another program. The Internet offers many options for paid services and applications that can help with this, but you can also find options where payment is not required.

In the beginning, we will talk about sites that can remove the password from a file and will not require installation on the user’s computer, all that will be needed is upload pdf to website, wait for processing to complete and download it back.

Resource Freemypdf.com

A fairly old and well-known site that will help unlock the ability to edit a file, allow you to print it or copy a piece of text. Despite the fact that the site is in English, it will be quite difficult to get confused. First it will be necessary upload file and then click " DoIt!", after a short wait, it can be received on the device again. However, this service will not allow you to understand the PDF, which cannot be opened at all without entering a password.

Decryption using pdfunlock.com

A very easy to use service. Can select location the desired pdf or simply drag it onto the site page. Then you just have to press “ Unlock", wait a little and get it back already unlocked.

We use smallpdf.com

Another site that will help you unlock pdf. Translated into Russian, so understanding it will not be difficult. Even on the main page they honestly warn that documents with strong encryption cannot be unlocked. Also here conversion available file into a different format, separation and merging of data presented in PDF.

Resource pdf.io

You just need drag and drop pdf to the site page, and then just wait for the unlocking process to complete. The service will also allow you to swap pages in documents and convert from one format to another. Translated into Russian and easy to use.

Unlocking programs

These utilities will require installation on the user's device. This action will make sense if online services fail, or if the user often has to deal with such files.

PDF Password Remover Tool

A fairly simple utility, which, nevertheless, will allow you to cope with most encrypted documents. Program distributed free of charge and it is best to download it from the developer’s website, this will allow you to avoid excesses with additional and malicious software, which the authors of various unreliable sites and “assemblies” love to shove into programs.

The first line will need specify the path to the document on which the password is set. In the second line you must specify the folder and name under which the result of the utility will be saved.

PDF Unlocker

Another free program that is very easy to use. Needed in the first line indicate the path to the encrypted data, and in the second, where you will need to save the result of the program. After that, all you have to do is press the bottom button and wait for the unlocking process to complete.

VeryPDF Password Remover

If none of the options help, you can use this utility. She is able to cope with documents of any complexity. The only drawback is that the utility is paid and costs about $30. However, it is possible to download a trial version. In any case, if there are no options, and the document needs to be unlocked urgently, then you can use this program.

A modern computer user often encounters problems when working with documents in pdf format. Such files are popular due to their functionality and convenience. But there are often situations when such documents have a certain type of protection, which causes some difficulties. After all, it is not always possible to copy information from such a file, and sometimes the document cannot even be printed.

There is no point in looking for the cause of such a situation, but it will not be possible to perform the desired action with a protected document until the restrictions are lifted. It is simply necessary to hack such documents. How to remove protection from pdf discussed in detail below.

It is important to know how to remove such protection. Today there are several ways to help make such a document available for use. As already noted, there are several convenient options. Some choose online services, others download and install special programs to perform such actions.

What types of protection are there?

Creators of .pdf files can use the following types of them to protect your work:

  • copy protection;
  • the need for a password to access various shares;
  • prohibition of access to content;
  • print protection;
  • ban on any changes and much more.

As you can see, there are a lot of options for bans and restrictions, but all of them can be lifted with the right approach. Below we will consider the most popular and common ways to remove protection from a pdf file.

Using Google Chrome

To get the job done In a similar way, you should perform the following algorithm of actions:

After completing these steps, access to the document is completely open, and you can perform any actions with it. This method is most popular if the question arises of how to remove the password from pdf.

Adobe Acrobat

This unlocking option is available for documents if the password is known. But in this case, you need to use the professional full version of Pro Adobe Acrobat, the familiar user version Acrobat Reader won't help.

Then you should enter the password, and the protection will be removed completely.

Special online services

There are a huge number of online services that help remove protection from pdf files. To remove pdf protection online you won’t need a lot of knowledge and skills if you follow a simple algorithm and recommendations on the selected site. It is quite difficult to consider the specifics of each person’s work, but to show how do such resources work?, actually using one example. Below we will discuss the algorithm for unlocking such a file using the PDFUnlock resource. However, it is worth remembering that unlocking with this particular resource can be performed for documents whose size is no more than 5 MB.

Application of special programs

Like web resources, there are a lot of programs for removing protection from .pdf files. Some of them are completely free, some only allow you to work for free the first time. Below we will consider two programs whose operation is similar in principle to similar ones: Ghostscript and GSView. Using these two as an example applications, you can understand how to remove protection in pdf.

When the program is finished, you can check the status of the received file and start working with it.

As you can see, if you encounter a .pdf file with similar restrictions, you should not despair. Knowing how to remove protection from a document using PDF, you should spend a little time and start working with the necessary information.