When you process some files, if you think it is important, you will set a password for the file, just like setting a password for your phone. If you need to view the password, you need to enter the password, in fact, the principles are similar. How can we encrypt a PDF file? Next let's take a look at the small series of operation methods.
1: In the first step, we can create a new folder and add the PDF file to be encrypted. Of course, you do not need to perform this step. This is a small Editor to facilitate subsequent operations.
2: You can use third-party software:
PDF ConverterThis software. Go to the Baidu browser or App Store for search and installation. here you don't need to make a small Editor to teach you how to install it. I believe everything will happen.
3: Double-click to enter the main window of the software. First, you need to understand the software. Then select [other operations on PDF]. Open this topic and we will see the [PDF encryption] function. The editor will introduce this function here, you can try other functions by yourself.
4: You can drag the PDF file in the file to the conversion box on the right of the software, or click Add file/Add folder to add the file.
5: After completing the preceding step, you can set the Save path. On the top of the software, you can see the words "output directory". The following two options are "original folder and custom options". Here, you can set them as needed.
6: You can see [Unified encryption] in the lower left. A new window will appear after you click it. You can set a password in it, set OK, and click "OK ", click Start conversion to enter the encryption process.
7: it takes some time for the file to be encrypted. If you see that the progress of the status bar is 100%, the file is successfully encrypted. At this time, you can go back to the location where the file is saved for viewing, at this time, you need to enter a password to view the content in the PDF file.
This section describes how to encrypt PDF files and how to encrypt them. We hope to help the users who need them. Of course, the above methods are for your reference only!
PDF converter: https://www.xunjiepdf.com/converter
How can I encrypt a PDF file? How to encrypt PDF files
