For some relatively important and sensitive PDF files, if you don't want them to be opened and viewed by others casually, you can set a password for the files to prevent unauthorized access. If you still don't know how to set a password for PDFs, quickly check out the content below. We'll show you how to batch encrypt PDF files with one click, along with detailed illustrated operation tutorials for everyone to learn. The steps are simple and easy to learn!
Preview of the Effect After Setting an Open Password for a PDF File
Method One: HeSoft Doc Batch Tool
Advantages: Simple operation, supports batch encryption of many PDF files with one click, no file limit, fast processing speed. Additionally, all files are processed locally without needing to be uploaded to a server, ensuring no leakage of sensitive information, making it safe and reliable.
Steps:
1. Open HeSoft Doc Batch Tool , find PDF Tools → PDF Add Password Protection.
2. Add all PDF files to be encrypted here; there is no limit to the number of files.
3. Select File Open Password, then enter the password you want to set below.
4. After processing is complete, click Save Location to view. All PDFs have been set with an open password, easily completing encryption.
Method Two: Adobe Acrobat DC
Advantages: A professional PDF editing tool with powerful features that can meet various complex user needs. It can batch set passwords for multiple PDF files, freeing up your hands and saving time and effort. The processing effect is good, suitable for users with higher requirements.
Steps:
1. Open the PDF file with Adobe Acrobat DC, click the Protect on the right side, then click Protect Using Password.
2. We choose View Password, then enter the password below and confirm the password again, click Apply to complete the setting.
Method Three: Batch PDF Encryptor
Advantages: This is a batch PDF file encryptor that can easily batch encrypt multiple PDFs, and it can automatically generate different open passwords for each PDF file simultaneously and save the passwords in a CSV file.
Steps:
1. Open the batch PDF encryptor, select the Open Password mode, then set a single password for all PDFs or a random password for each PDF according to your needs.
2. Then enter the owner password and the PDF file's open password below.
3. Click Output Path, select a save location for the encrypted PDF files, then drag and drop the PDFs to be encrypted onto the large icon in the window to start encryption. After processing is complete, the encrypted PDF files have been saved to the specified location.
Method Four: PDF24 Tools
Advantages: The steps are simple and easy to understand. Just open the page, upload files, and then encrypt them; there is no technical barrier, the process is straightforward, and you can use it right away, suitable for beginners and users with no foundation.
Steps:
Open PDF24 Tools, select Protect PDF, click Choose File, upload the PDF file to be encrypted here. Enter the password you want to set below, and finally click Protect PDF File.
Method Five: Soda PDF Online
Advantages: An online PDF processing tool, no need to install additional software, just open a browser to use it, convenient and fast, saving time. It is not limited by the operating system and can be used on both Windows and Mac.
Steps:
Open Soda PDF Online, select Protect PDF, then upload the PDF file that needs to be encrypted. After uploading is complete, an interface pops up for us to enter the password and confirm the password. Once the password is set, click Protect.
Among these four methods, the first three are local processing tools, which offer stronger security but need to be installed on a computer to use. The latter two are online processing tools, which are convenient to use but prone to privacy leaks, each having its advantages and disadvantages. You can choose a method you find best and most reliable to encrypt your PDF files based on your actual situation.