How many ways to encrypt PDF files? In the digital age, PDF files have become an indispensable part of our daily work and life, however, have you ever thought deeply about how to ensure that the content in these PDF files is fully protected? While the PDF format itself provides some basic safeguards, such as protection against direct editing, these measures are often weak, and if these protections are bypassed, sensitive information can be at risk of being compromised, which can be a serious problem for individuals or businesses.
In order to protect PDF files more comprehensively, we need to take more refined and effective measures, among them, a widely accepted and very practical method is to set a password for PDF files, through this simple but powerful function, we can achieve multiple protection effects, and set a password to set PDF files will also become more difficult to modify, which can not only prevent malicious modifications, but also prevent those who try to tamper with the content of the file at the source. The following editor will introduce you to four ways to encrypt PDF, interested partners come and take a look!
Method 1: Use "Yousu PDF Factory" to encrypt the pdf
Download link: https://download.yososoft.com/YSPdf/YSPdf_TTY.exe
Step 1: First of all, make sure you have downloaded and installed the "Uber PDF Factory" software, if you haven't downloaded it yet, please download and install it first, open the software after the download is completed and select [PDF File Operation] on the far right as the starting point.
Step 2: In the [PDF File Operation] interface, find and click the [PDF Encrypt] function on the left, which is the key step we will encrypt the PDF file.
Step 3: Next, we need to select the PDF file that needs to be encrypted, you can directly drag and drop the file to the specified area in the software interface, so that the file will be quickly imported into the software and ready to be encrypted.
Step 4: When the file is imported, you will see a [Enter Password] prompt box below, here, enter the password you wish to set, please make sure the password is secure, and try to use a complex and easy-to-remember combination.
Step 5: After the password is set, you can start the encryption process, click the [Start Conversion] button in the upper right corner of the software, and the software will immediately start to perform the PDF encryption operation.
Step 6: When the encryption is completed, the software will automatically open the output directory, you can find the encrypted PDF file here, in order to verify the encryption effect, you can try to open any PDF file, at this time you should need to enter the password you set before to open it successfully, which proves that our encryption operation is successful.
Method 2: Use Quyun PDF processor to encrypt the PDF
Step 1: First of all, you need to download and secretly turn Quyun PDF processor, open the software after the installation is completed, and then find and click on the PDF encryption option on the left side of the software interface.
Step 2: After clicking on the above options, click on the Add File button in the upper left corner of the software, click on the button to select the PDF file you want to encrypt and import it directly into the software.
Step 3: After the PDF file is imported, you need to click the Start Encryption button in the lower right corner, and then the software will pop up the encryption window, here you need to enter the desired password and confirm the password, and click the OK button to start the encryption program of the software after confirming that it is correct.
Step 4: After the software completes the PDF encryption operation, you need to click the folder icon on the right side of the file, and then you can open the output directory of the software and find the encrypted PDF file.
Method 3: Use LINOQ online pdf processing tool to encrypt pdf
Step 1: First of all, you need to find the website of the above tool, click on the website to come to the main interface of the tool, and click on the PDF encryption function here.
Step 2: After clicking on the function, you can start encrypting, first you need to click the Add File button, after clicking the button, you can select and upload the PDF file to the tool page.
Step 3: After the PDF file is uploaded, the password setting menu will appear on the right side of the tool page, where you need to enter the password twice and click the encryption button, so that the encryption can be easily completed.
Step 4: Finally, the download button will appear on the right side of the tool page, click the download button to download the encrypted PDF file.
Method 4: Use HYYQZ software to encrypt pdf
Step 1: Open the PDF file:
First, launch the HYYQZ software. Select "File" > "Open" in the menu bar, then find and select the PDF file you want to encrypt to open it.
Step 2: Choose Encryption:
Once the PDF file is open, select the "Security" tab in the menu bar. In the Security tab, you'll see the "Encrypt" and "Decrypt" features.
Step 3: Set an encryption password:
After clicking the "Encrypt" button, a "Encrypt Document" window will pop up. In this window, you can choose two types of passwords: User Password: You need to enter a user password to open a PDF file.
Permission password: You need to enter a permission password to modify, print, or copy PDF files.
Step 4: Set User Password:
In the Encrypt Documents window, first select the Encrypt files with password option. Then enter the user password you wish to set. The user password is used to verify identity when opening a PDF file. Make sure the password is secure enough and remember it.
Step 5: Set a Permission Password (Optional):
If you want to restrict operations such as editing, printing, or copying PDF files, you can select the Set Permission Password option. After entering the permission password, you can check the permission options below, such as prohibit printing, prohibit modification, etc.
Step 6: Apply Encryption:
Once you have set the password and permissions, click the "OK" button to apply the encryption settings. HYYQZ will start processing and saving the encrypted PDF file.
Step 7: Save the encrypted PDF file:
Finally, save the encrypted PDF file. Select "File" > "Save" or "Save As" in the menu bar, select the location and file name you wish to save, and click "Save".
Step 8: Test the Encryption Effect:
The saved PDF file should now be encrypted. You can reopen the PDF file and try to access it with the password you set to ensure that the encryption settings work.
Password protection is undoubtedly a powerful tool when we delve deeper into the security of PDF files, however, it is not without its drawbacks, first of all, setting a password will affect the convenience of the file to a certain extent, in addition, the memory and management of passwords is also a challenge, in order to prevent forgetting, we may choose to record the password on a note, notebook, or in a corner of an electronic device. That's all for today's article "How many ways to encrypt PDF files?" When deciding whether to set a password, we need to consider the importance of the file, the sensitivity and the frequency of use, etc., only to ensure the security of the file at the same time, minimize the inconvenience caused by the password, we can truly realize the security and convenience of the file.