Selecting a file for protection
Select the confidential file you want to protect and drag it to the appropriate field. You can also upload the file from your computer or cloud storage such as Google Drive or Dropbox.
Choosing a password
Enter a password to protect your file and confirm it. Make sure you remember your password or keep it in a safe place before confirming it. We do not impose any restrictions on the password format, but the longer and more complex the password, the more secure it is.
View and download a file
Once the password is set, you can download the protected file to your computer and view it in your browser. You can also email mail a link to your file; this link will be valid for 24 hours.
DID YOU KNOW?
Higher level of encryption provides higher level of protection
There are different levels and types of encryption. The strongest and most secure PDF encryption level is the 256-bit AES (Advanced Encryption Standard) encryption algorithm, which has never been cracked! This will ensure that your file is under the best possible protection - as long as you don't forget your password. PDF was previously supported with 128-bit AES encryption, but this option is no longer supported in the latest version of the PDF 2.0 standard.
Learn more about password protecting PDF files
Complete file protection
Password protect your PDF file from prying eyes! Our online password protection tool prevents you from opening your file and accessing its contents without knowing the password. Just select the file to protect and then enter your password.
Removing password protection
You can remove protection from a password-protected PDF file only by using the original password with which it was protected. If you have a matching password, you can use our free online password remover tool to remove password protection of a file. So don't forget your password or keep unprotected files in a safe place.
Restricting Permissions
Take control of permissions, including editing, printing, and copying your document. Use our complete PDF protection tool to restrict access to these features while still allowing the file to be opened.
1. Introduction
Probably, most will agree that there is confidential information that you want to protect as much as possible from prying eyes. It just so happens that most electronic documents are presented in pdf format. How can they be protected? With the help of this article, you will learn several ways to howprotect pdf file, and also another option will be offered pdf file protection.
2. Ways to protect a pdf file
So, protect pdf file you can set a password to open it. This method is described in detail in the article: How to put a password on a pdf document? and Create pdf files with PDF24 Creator.
note that in the above articles the password is set when creating a pdf file.
3. A new way to protect a pdf file
The above methods imply pdf file protection when creating it. (How to create a pdf file was discussed in the articles: Creating pdf files with doPDF 7, PDFCreator - creating pdf and How to create a pdf file?) But what if you don't need to create anything, since there is already a ready-made pdf file and you just need to protect it? This will be discussed in this article.
For the task, we will use the utility Vinsoft LockPDF... First you need to download and install Vinsoft LockPDF... After installation Vinsoft LockPDF the main window will open:
If appearance Vinsoft LockPDF If you don't like it, you can go to the settings and change it.
Vinsoft LockPDFprotects pdf file from copying the content to the clipboard, editing it, converting it and printing it. (How to convert is written in the article: How to convert pdf files and Wondershare PDF to Word Converter - PDF converter).
4. We put protection using Vinsoft LockPDF
Protect pdf by using Vinsoft LockPDF very simple. In the field "Select the PDF file to be closed" indicate the file to be protected, and in the field "Select the directory where the file will be saved" - the place where Vinsoft LockPDF will create secure pdf file.
note, if the directory for saving the protected file coincides with the source file, it will be overwritten and become protected. If another directory is specified, then it will be created secure pdf file, and the source file will remain in its original state.
Screenshot:
Now click on "Close PDF File". In a few seconds everything will be ready. Vinsoft LockPDF will inform:
So we protected pdf file.
5. Checking the installed protection
Now let's check how this protection works. First, let's open our protected file, for example, using the PDF-XChange Viewer.
The screenshot shows that after the file name, in brackets there is the word PROTECTED. Let's try to print it:
So, the protection prevents the file from being printed. What about exporting it to other formats?
The "Export / To Image" option is also inactive, which indicates that the protection we have installed is working. The same situation will be if we open secure pdf file using another program, for example, Adobe Reader 10 PORTABLE.
6. Removing protection ...
Nevertheless, the protection we have installed can be removed. How to do it? Follow the step-by-step instructions in the articles: Removing protection from pdf files using PDF UNLOCKER and Advanced PDF Password Remover - removing protection from pdf files. Do not be upset that rather quickly and simply we removed the protection of our pdf file. Not every computer user can remove protection from a pdf file. The installed protection serves as a good reminder of the confidentiality of your document and in most cases will do the job!
We all use PDF documents quite often. This is due to its functionality and usability. However, each of us may be faced with the need to remove protection from a PDF file. This may be needed for various reasons, for example, in order to print text, edit a file, open it in a non-standard way through Photoshop, convert from this format to another so that the file can be read by another device, and so on.
The reason for this need is absolutely irrelevant. The main thing is that if the protection of the PDF file is installed, you will not be able to do all of the above. Therefore, our task today is to find out and understand how not to become hostage to this situation. So how do you remove protection from a PDF file? Below I will discuss several ways that allow you to do this. However, all of them can only remove the password from these documents. You won't be able to find out exactly what it was, but after that you can do whatever you want with the file.
If you search for programs that remove protection from PDF files through search engines, then the vast majority of them will be paid. But I still managed to find several working methods that cost me nothing. It is them that I will now share with you, which will save you from the dreary search for a solution.
Online services
Let's start with online services, thanks to which the protection of PDF files can be easily removed. The advantage of this method is that you will not have to download the software to your hard drive and then install the software with all the ensuing consequences. After all, I'm absolutely sure that you don't often ask yourself the question of how to remove protection from a PDF file? As a rule, such a need in life arises a couple of times.
How to do it?
Using your browser, visit www.freemypdf.com. This resource is quite old, but over its entire existence it has proved itself quite well. It not only allows you to remove the password, but also removes restrictions such as protecting PDF files from copying, from printing, and the like. However, if your file initially asks for a password even to open it alone, then this service will not be able to help you.
So, here's how to remove protection from a PDF file using this online service. We go to the site, then click on the file selection button. Next, you need to specify the path to the file that you want to unblock. Remember that the size of such a document should not exceed one hundred and fifty megabytes. Otherwise, this method will not be able to help you. When the file is listed, click on the button called "Do it!" We are waiting for a while. After that, you can download the required document without a password and in decrypted form.
Second way
The second way to get rid of the password is www.pdfunlock.com. It works on the same principle as the one described above. Drag and drop your password protected document directly into the window of this site. If the file was on your hard drive, click the "My Computer" button. If you find it in, click on the "Google Drive" or "Drop Box" button. Next, you need to click on the "Unblock" button and wait until the process of removing protection is completed.
Free software
Now it's time to learn how to remove protection from a PDF file using free software. Let's start with the first program called "PDF Password Remower Tool". Download it from the developer's site. Just don't confuse this software with a similar one called "PDF Password Remover". The latter program does exactly the same thing as the first one, only it costs twenty-nine US dollars.
How to use?
How to use this miracle? And everything is very simple. Even a schoolboy can figure out the interface of this software. We find the field called "Open PDF-file", and in it we indicate the document that needs to be "neutralized". Next, go to the field called "Save PDF-file", where you must specify the name under which the new document will be saved without protection. Find the "Convert" button and wait for the process to complete. This software is able to cope with many passwords, therefore, as a rule, there is no need to look for any other solutions to this problem.
Moving on. I present to your attention the following program that will allow you to unlock a protected document. It's called "Free PDF Unlocker", and you can also download it from the developer's site. It is quite simple and allows you not only to get rid of the password, but also to remove any restrictions and restrictions on PDF files. This is both print protection and copy protection. The ban on opening files is not difficult for her either. She overcomes this obstacle with ease. However, it is not always able to cope with some new documents that have enhanced protection.
Paid software
All of the above is usually sufficient to remove a password. These methods are quite simple and do not require any material investment. But if for some reason none of the above methods solved your problem and the PDF document still has a password, try using another program called "Very PDF Password Remover". You can download it, like all the previous ones, on the developer's website.
The full version of this software costs 1,000 Russian rubles, but the trial version will cost you nothing. You can easily figure out its interface, and for sure it will do everything that you need. The program copes with any difficulties that relate to PDF-format.
There is also a sea of similar software, usually paid, which I do not see the need to use, because, as you can see, there are enough free programs that solve the problem. If, nevertheless, you decide to use paid software, then I also offered you the best possible option.
On this I will end, because I told you everything I wanted. All of the above methods work for sure, since they have been tested by me personally and more than once. I hope I saved you from wasting your time in search of a solution to this urgent problem on Internet resources, as well as thematic forums.
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The degree of protection of a pdf-file depends on the claims of the owner for the authorship of the material contained in it. And it can become an obstacle not only to making changes, but even to reading it.
However, nothing is impossible, this also applies to changing protected pdf files. Read below about the ways that will help you with this.
There are several ways to remove protection from PDF files.
Using Google Drive
1. Go to the mentioned service in your browser.
2. In the settings, select “Convert uploaded files to Google format.
3. Drag the file to the site window.
4. Expand it in text format.
5. Save the resulting result in a convenient place for you.
The resulting document will consist of text and pictures.
Using PDFUnlock
1. Go to the named site.
2. Download the file from your computer, Dropbox or Google Drive.
3. Unlock by pressing the corresponding button.
4. When finished, download the converted document.
Application of special programs
1. Install two free programs Foxit Reader and CutePDF Writer.
2. Run the file first.
3. Send it to print.
4. In the "Printer" dialog box, select the second installed application.
5. Save the opened document.
When using Microsoft XPS Viewer
1. In Adobe Reader, open the required file.
2. Click Print.
3. Select the above application from the list of printers.
4. Save the opened result on your computer.
5. The program is part of the operating system and does not require additional download.
Unlock with Ghost Script and Ghost View
1. Download and upload the required software.
2. Call the file submenu with the right mouse button.
3. Rename it by changing the extension in its name to * .ps.
4. Open the resulting document.
5. Select Convert from the menu. Then Device and pdfwrite.
6. Set the resolution to 600 dpi.
7. Save as pdf.
Unblocking via Google Chrome
1. Open the file in a GC browser.
2. Click Print.
3. In Printers select "Save as PDF".
SysTools PDF Unlocker Software
note- the program is paid. But you can familiarize yourself with its capabilities in the demo version.
1. Download and install the program.
2. Open the pdf file you need through the menu.
3. Specify the path to save it.
4. Click Unlock PDF.
Unblock on thepdf.com
1. Log in to the site.
2. Go to PDF Unlock through the site menu.
3. Press Select and select the desired file.
4. Then Unlock.
5. Download the downloaded and unlocked document to your computer.
You can check the result of the work in the file properties in the Security tab.
These are just a few of the methods for overcoming copyright armor, but they are being improved all the time. So stay tuned. And we will replenish our database with new data.
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Hello readers of my blog!
I think everyone knows a program like adobe reader, which is free. It facilitates the opening, viewing and printing of pdf documents. The browser automatically detects adobe reader during installation and installs a plugin for it. Then you will be able to view all documents of the specified format.
As a user, you can add comments, graphic overlays, callouts, lines, and more. Unfortunately (and for some, fortunately) in practice there is no program that can completely protect a document from copying.
I would like to note that you can protect your author's text by “not showing” it in full. You can post certain excerpts of your work on the site, and the full text for download can only be offered after payment. But if this option does not suit you, then consider a number of programs for protection.
Frequently used free PDF Freeze, which converts a PDF file into an image. This protects the content. This program is aimed at replacing text with an image (). The content cannot be copied or selected, which will create difficulties while working.
The tool in question has encryption methods that prohibit the ability to print, copy, edit. The app is available in several themes.
To convert a file to an image, you should first download and install the PDF Freeze converter. Then open a simple interface, add a pdf file from your computer, select the quality level and encryption method. You just specify the parameters you need and click on the "Freeze" button.
After that, a new window should open in which you should indicate where to save the output image.
Ready! You will find the PDF image where indicated. As you can see, the program is elementary and will not bring any difficulties even to an inexperienced computer scientist.
Online protection
There is an online protection method. To do this, you just need to follow the link. The tool allows you to encrypt the entire document and protect some properties of the PDF file (for example, only protection against printing or copying).
There are three methods you can use.
First, you only allow the document to be opened after the correct password has been entered.
Secondly, you always allow the text to be opened, but restrict certain actions. For example, prohibit its printing.
Thirdly, you can combine the above two options - set a password and at the same time restrict actions.
Two passwords are set - "user" and "administrator". If the recipient specifies a "custom" password, they will be able to view the document. You, with the help of the "administrator" password, completely control the document and, if necessary, print it.
The maximum size allowed is 50MB. If it becomes necessary to protect a large file, then you will have to wait a few minutes, since uploading to the server takes some time and directly depends on the connection speed.
Thus, using the methods described above, you can take measures to preserve your copyright for the PDF document.
Sincerely! Abdullin Ruslan
