How to Encrypt PDF, using Smallpdf

Learn how to encrypt PDF files. Add a password to your PDF with our Smallpdf tool.

In this day and age, you can’t be too careful about who you share your information with. Maybe you have a very important PDF that’s only meant for certain people to see. You could print it out, put it in a folder marked “Classified”, and cross your fingers it doesn’t fall into the wrong hands.

OR... you could keep it simple and use Smallpdf’s “Protect PDF” tool to add a password and encryption to your file. In fact, it might just be the simplest way to secure the valuable information in your PDFs.

Here’s how to add a password and encrypt your PDF using Smallpdf:
2. Choose “Protect PDF” from our menu of tools.
3. Drag your PDF into the toolbox to upload it.
4. Next, you’ll be asked to set a password for your file. Just type your password into the open fields, and select “Encrypt PDF”.
5. In a few moments, your PDF will be encrypted.
6. And your new password-protected PDF will be ready for download.

To secure your file, we encrypt it with a powerful 128-bit AES encryption. This makes it impossible to open your PDF without the correct password. And to protect your privacy, we’ll never store your password or PDF on our server.

Smallpdf. We make PDF easy.

Chapters ⬇️
00:00 Intro
00:33 How to encrypt PDF
00:14 Thank you
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[pranavgupta]

Hello when i try to secure my PDf . I am able to set up a password . But when it comes to upload it shows " Sorry your upload failed please try again later " .Please help me with this issue .

[bcs_AmitChauhan]

my pinkey was false because i didnt believe in it at that point of time and i was not having rights to edit it but i was editing it for non commercial purpose

[juliannekloss]

Do not sign up for any free trials on SmallPDF — they do not follow FTC guidelines re: reminders that your free trial is ending and will not refund an entire year subscription when cancelled within 30 days. Their service didn’t even work for the one thing I needed it for when I signed up. 0/10.