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Keeping your PDF files safe is important. After all, they contain sensitive information that you don’t want to fall into the wrong hands. The good news is that it’s easy to secure a PDF file using free software like Acrobat DC (the desktop version). Here are some of the favorite ways to do it:
Stop Unauthorized Access
If you have confidential documents that need to be protected, locking them up and leaving them unguarded is not an option. However, there are several ways to keep your PDFs safe and secure, one of which is a password-protected PDF. “It means a password is always required to view the contents of your PDF file,” as Adobe Acrobat says.
Password protect PDF file allows only certain individuals access to the file. It also makes it more difficult for others who try to open it without authorization because they must enter the correct password for it to be opened on their computer or device.
Prevent PDF Files From Being Printed
You can prevent PDF files from being printed in the first place. If you have a lot of clients who use your PDFs to send invoices, set a password on the file so that only people with access can print it. This way, it stays secure and only those who need to see it will be able to do so.
You can also protect your documents by preventing them from copying or editing. Setting up these restrictions makes sure that no one tampers with them and they remain the same as when you created them!

Keep PDF Files Private and Confidential
PDF encryption is a way to make your PDF files completely secure and private. With it, you can prevent unauthorized access to your files. That means no one except the people who have a password will be able to view or open your documents. If you have sensitive information stored in your PDFs, this can be a vital feature for keeping it safe from prying eyes.
In addition, encryption can also be used to prevent the printing of documents so that anyone who tries to print them gets nothing but gibberish on their printer. Enabling encryption also allows a PDF filler to limit the number of downloads for each document so that if someone does get hold of one of your documents somehow (e.g., through illegal means), you can control how many times it gets passed around before getting deleted from the servers entirely!
Limit Access to a Specific Number of Downloads
You can also set a limit on the number of downloads. If you have an online store, this is a great way to make sure that only one user can access the file at a time, ensuring that everyone has a fair chance at getting their hands on your product.
You can also track how many times users have accessed the document. A lot of businesses use this feature to see if employees are using company resources for personal use or otherwise abusing their access rights.
If you want to protect your PDF files, plenty of plugins allow you to do this. They can help you control who has access to the document and how many times it can be downloaded. This is especially useful if you’re using Dropbox or Google Drive as a storage platform for your files!