Today we will look at how to password-protect a PDF file to protect it. Let's look at the question of why this is needed and how to do it technically, quickly and for free. Protecting your PDF files is extremely important if you are creating information products or making money online. For practical work In this article we use the SmallPDF service.

Why do you need to protect files from copying?

Hello, friends! It is no secret that various content is stolen from websites and blogs on the Internet, and copyright products in the form of books, various courses, and so on are also stolen. Naturally, you need to protect yourself from this, you need to protect your copyright. And if this phenomenon cannot be completely excluded, then it is necessary to at least minimize the damage that pirates cause.

I’m already used to the fact that articles are regularly taken from my blog and published on other blogs. This phenomenon sometimes harms my blog, but what can I do, that’s how everything works. Another thing is that people who take my content do not understand that sooner or later their sites (blogs) will fall under sanctions search engines. After this, it will be difficult for the owners of such resources to bring them to top positions. In general, it's their business.

For this reason, you need to protect your products from copying. Since the most common product format is PDF files, today we will consider the question of how to password protect a PDF file. Of course, there are many different programs for this. We will use simple, accessible and free program SmallPDF, or rather a service with this name.

The SmallPDF service is intended primarily for converting various files, for example, Word to PDF, PPT to PDF, and so on. ABOUT this service was written in the article, as well as in the article. If you have read these articles, then you know that the service is multifunctional. So, the SmallPDF service has a “Protect PDF” function. In this article, we use this function to put a password on a PDF. So, let's move on to practice.

How to password protect pdffile(pdf) to protect him

Before considering the question of how to password protect a PDF file, I will say a few words about protecting PDF files from copying and printing. This can be done easily and simply using the VinSoft LockPDF program. To prevent your books from being copied, you can quickly protect the file. How to do this is shown in my free book “”, you can download this book.

I would like to draw your attention to the fact that copy protection will work if you convert the file to PDF via Word program. Of course, such a measure will be sufficient for absolute beginners, but people with little experience will be able to break such protection. After all, there are several programs that allow you to remove copy protection from pdf files. To seriously protect your book, you need to put a password on the PDF file.

First, go to SmallPDF, then click on the “All tools” button, and select “Protect PDF” from the drop-down list. A pink tab opens in a new window. Next, select computer pdf the file that needs to be closed with a password, select it and drag it with the mouse onto the SmallPDF service page.

Two fields appear where we come up with and insert a password (confirm). Then click the “Encrypt PDF” button.

The download and encryption process takes a few seconds. After which we are asked to download an encrypted PDF file to our computer, which we do. The password must be written down somewhere, otherwise you will not be able to open the file later.

Now to open a PDF file, the computer will ask us for a password. We enter the password and the file opens successfully. All the details are shown in the attached video below. It will be difficult to remove the password from PDF with various programs if you set it complex. For example, at least 7 characters, and also use letters, numbers and symbols.

Is it possible to remove the password from pdf?

To remove the password from a pdf file, there are various programs. There is such an opportunity on the SmallPDF service; to do this, you need to click the “Unprotect PDF” button. But don’t delude yourself, it’s not that simple. For example, to a 9-character password, the service responded that it could crack the password, but it would take 1,200,000 years to do so. I wonder if anyone will wait that long? Of course, nothing is impossible, but is it worth doing?

If you make a password of, say, three characters, the service will quickly be able to help you. In most cases, it is enough to install simple copy protection and printing, but everyone must decide for themselves.

Conclusion

So, in this article we briefly looked at how to protect pdf from editing, copying and printing. If you want to limit yourself to this method of protection, download the book and work from it. If you want to make more serious protection, then this article shows how to password-protect a PDF file to protect it. In addition, you can watch the video.

I hope you find this article useful, I’m sure you will get results! If you have any questions, ask them in the comments, I will be happy to answer your questions. Good luck and all the best!

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Protect file with password

Once you've downloaded your PDF, you can add a password to it by selecting the "Protect PDF" feature.

To do this, drag the file into the box above or upload from your device or the cloud, then enter New Password to ensure document security.

Protect PDF file with password

Protect PDF files with a password to prevent third parties from copying or printing your documents.

We offer an easy way to protect your PDFs with a password of your choice.

Why protect PDF files?

Password protecting PDF files is useful for a number of reasons. Firstly, only those people to whom you have shared the password will be able to open and view the file.

Secondly, you can set a limit on copying and printing of the PDF document.

File Security and Protection

Setting a password on a PDF document is a delicate task. Of course, you want to know for sure that your files are not in danger.

PDF2Go guarantees the security of all uploaded, edited and converted files. See Privacy Policy for details.

What files can be protected

You can only add a password to documents Adobe PDF. However, the number of pages in a PDF file, as well as the presence of text, images, tables and other objects, does not matter. We are capable of any task.

You can upload other files, text or graphics. We'll automatically convert them to PDF and add passwords for protection.

Complete PDF security

Convenient online studio PDF2Go allows you to protect PDF files with a password absolutely free of charge. But that's not all!

You are not attached to home computer. You can add a password to a PDF file from any available device. This is possible with us.

In this article we will look at two methods of protection pdf file. The first is to set a password for opening a pdf file, the second is to protect against printing the document, copying the contents, or changing (converting) the document. Security can be installed when creating a pdf.

For this you need a program PDF Creator. After you have downloaded and installed PDF Creator, double-click to launch this program.

A settings window will open

Next, select “PDF” and click on the “Protection” tab
If we want to protect against opening, then check the box “A password is required to open.” (If you forget your password, it can be removed)

If we want to protect against printing a document, copying content, changing (converting), then in the “Prohibit user” item, check the following four boxes:
1) printing the document;
2) copy content;
3) change the document;
4) change comments.

After that, save the settings. In the next window, also click “Save”. A window will open where you need to specify passwords.

After specifying the password, the pdf creation process will be completed. We can see what our secure pdf looks like. If, when creating a pdf, you set a password to open it, then when you launch such a file, the following window will appear:

So, you have protected your pdf document.

The SendPulse service is a marketing tool for creating a subscription base and converting casual visitors to your website into regular ones. SendPulse combines on one platform the most important functions for attracting and retaining customers:
● e-mail newsletters,
● web push,
● SMS mailings,
● SMTP,
● newsletters in Viber,
● sending messages to facebook messenger.

Email newsletters

You can use various tariffs for conducting e-mail mailings, including free ones. Free plan has restrictions: subscription base no more than 2500.
The first thing you need to start with when working with the e-mail newsletter service is to create your own address book . Set a title and upload a list of email addresses.

It’s convenient to create on SendPulse subscription forms in the form of a pop-up window, built-in forms, floating and fixed in a certain part of the screen. Using subscription forms, you will collect a subscriber base from scratch or add new addresses to your base.
In the form designer, you can create exactly the subscription form that best meets your needs, and the service tips will help you cope with this task. It is also possible to use one of the available ready-made forms.

When creating subscription forms, be sure to use an email with a corporate domain. Read how.
Message templates will help you beautifully design your letters to subscribers. You can create your own letter template in a special designer.

Automatic mailings. Content managers actively use automatic mailing. This helps automate the process of working with clients. You can create an automail newsletter in several ways:
● Sequential series of letters. This is the simplest option when, regardless of the conditions, several letters are written that will be sent to recipients in a certain order. There may be options here - series of messages(simple message chain), special date(letters are timed to specific dates), trigger letter– the letter is sent depending on the subscriber’s actions (opening a message, etc.).
● Automation360– mailing with certain filters and conditions, as well as taking into account conversions.
● Ready-made chains according to the template. You can create a series of letters using a given template or modify the template and adjust it to your needs.
A/B testing will help you conduct an experiment on different options for sending a series of letters and determine best option by openings or transitions.

Sending Push Notifications

Push mailings are a subscription in a browser window, this is a kind of replacement for RSS subscriptions. Web-push technologies have rapidly entered our lives, and it is already difficult to find a website that does not use push mailings to attract and retain customers. Request script for , you can send letters either manually or create auto-mailings by creating a series of letters or collecting data from RSS. The second option implies that after a new article appears on your website, a notification about this will be automatically sent to your subscribers with a brief announcement.

New from SendPulse– now you can monetize your site using Push notifications by embedding them advertisements. Upon reaching $10, payments are made every Monday to one of the payment systems - Visa/mastercard, PayPal or Webmoney.
Push messages on the service are absolutely free. Payment is taken only for White Label - mailings without mentioning the SendPulse service, but if the service logo does not bother you, then you can use push notifications for free without restrictions.

SMTP

The SMTP function protects your mailings from being blacklisted by using whitelisted IP addresses. Cryptographic signature technologies DKIM and SPF, which are used in SendPulse mailings, increase the trust in the letters sent, making your letters less likely to end up in spam or blacklist.

Facebook Messenger Bots

Facebook chatbot is in beta testing. You can connect it to your page and send messages to subscribers.

Sending SMS

Through the SendPulse service it is easy to send mailings across the database telephone numbers. First, you need to create an address book with a list of phone numbers. To do this, select the “Address Book” section, create a new address book, and upload phone numbers. Now you can create an SMS newsletter using this database. The price of SMS messaging varies depending on the recipient's telecom operators and averages from 1.26 rubles to 2.55 rubles per 1 SMS sent.

affiliate program

SendPulse implements affiliate program, within which a registered user using your link who has paid for the tariff will bring you 4,000 rubles. The invited user receives a discount of 4,000 rubles for the first 5 months of using the service.

In OS X, you can password protect not only your documents, but also ordinary documents. For example, creating password-protected PDF takes literally one minute, and now we'll see how to do it.

First we need any document. It could be Pages file, Word, Excel or another - in the future we will still convert it to PDF format. For our experiments, I specially created a test Word document.

To convert a file to PDF, open any text editor, go to the “File” menu, select “Print” and then “Save as PDF”.

But it’s too early to save our new document. We go to the file security settings, where the system will prompt us to choose a password, without which access to the document will be impossible.

With this simple trick you can easily protect your document from prying eyes. When trying to hack a file, an attacker will only see incomprehensible characters in place of its contents, but in other cases it is impossible to do without a password. It is very convenient if someone else sometimes works on your computer.

Of course, to protect more high level It is recommended to use rather than individual files and folders. In this case, it will be possible to open it only after entering a special key, which is automatically generated by the system itself.

On the other hand, a professional hacker will definitely find a way to bypass any protection, especially built into operating system, so do not trust such methods to secure extremely important documents.