PDFs let you set restrictions on editing automatically. However, sometimes it’s important to take security to the next level. High-tech encryptions let you block unauthorized people from opening, viewing or printing your PDFs. Here’s how to encrypt a PDF using PDFSimpli tools to add major security to confidential PDF documents.

Our state-of-the-art tools help you perform countless edits to PDFs, including adding powerful encryption. Here’s how to use our simple-yet-advanced encryption tool:
Now you have a security-optimized PDF to send across the web without worry. Thanks to 128-bit AES encryption, your PDF is safe from online tools designed to open locked PDFs. We don’t store any of the passwords you use, so we can’t open it either.
Using PDFSimpli to encrypt your files before emailing them to friends, family or colleagues is a great idea. After all, you never know who may end up getting their hands on attachments from email accounts. With PDFSimpli’s secure encryption, you don’t have to worry about a thing. Only the people you share the password with can view, print or edit your document. This is great for confidential client contracts, invoices, business records and PDFs related to personal finances.
Users have several options for encrypting PDFs on a Mac. For example, they can take advantage of Apple’s bundled Preview app. To encrypt using Preview, click on the File menu and choose the Export option. Check the box marked “Encrypt” and enter a solid password. Then click “Save.” This encryption is trustworthy for casual use.
Of course, if you want to perform other edits, such as adding a digital signature, watermark or image to the file, you need something more robust. That’s where PDFSimpli really shines. Our website is easy to access on Apple devices, so you can encrypt PDF files anytime, anywhere.
Adobe Acrobat also has some features that allow you to encrypt PDF files. Finding the right tabs can be a little tricky, but we can walk you through the process. The main idea is to add special permissions to the document. Here’s what to do:
While this process isn’t as easy as working with our PDFSimpli tools, it can get the job in a pinch. However, there’s a big downside to using Adobe Acrobat Pro to encrypt files: it carries a hefty price tag. We recommend using PDFSimpli online for free. Knowing how to encrypt a PDF with PDFSimpli can save you time and money.