For example, lawyers send draft contracts to clients, teachers send undisclosed test papers to students, HR sends payroll, and designers hand in source documents for design drafts. For example, if you want to email a business plan or financial report to a client or colleague, what if you are worried that the file will be seen by others? In fact, adding an open password to the PDF can solve these problems. However, if there are too many files, it will take too much time to open, set passwords and save them one by one, and you have to worry about whether the tools used will reveal the contents of the files.
Why do I need to add an open password to the PDF?
1. Send important documents to the outside world: send quotations to customers, agreements to partners, and add passwords. Even if the mail is accidentally sent to the wrong person, the other party will not be able to see it without a password, thus adding another layer of insurance.
2. Manage internal data: Some documents in the company are not available to everyone. Setting different passwords when sending them to employees of different levels is a simple permission management.
3. Protection of personal privacy: PDF scanned documents such as ID cards, resumes and physical examination reports are stored or sent to others with a secret to prevent personal information from being used indiscriminately.
4. Prevent early disclosure: Designers and consultants hand in the final results and add a password to prevent the work from being disclosed in advance, but also appear more formal and more like the final version.
5. Unified processing of batch files: For example, there are a pile of reimbursement forms for finance every month and a pile of appraisal forms for personnel every quarter. Before archiving, passwords are added to them in batch, and the security level of the entire database is increased.
PDF encryption effect preview
Before processing: can be opened directly
After treatment:
Method 1: Use HeSoft Doc Batch Tool To add open password to PDF batch
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Advantages:
1. Local batch processing. Can add dozens or even hundreds of PDF files at one time, the software is processed locally on your computer, the files do not need to be uploaded to the Internet, the safety is guaranteed, and the efficiency is greatly improved.
2. File encryption protection. The opening password added to PDF is a professional level of protection. Even if the file accidentally flows out, it cannot be opened without a password and the contents cannot be seen.
3, the operation is super simple. The first step is to select the file, the second step is to enter the password, and the third step is to start. Anyone can learn quickly without any professional knowledge.
Disadvantages:
γ HeSoft Doc Batch Tool ] needs to be local to the computer.
Operation steps:
1. Open γ HeSoft Doc Batch Tool ], select [PDF Tool] on the right, and then select [PDF Add Password Protection] on the right].
2. Click [Add File], or drag the file to be processed to the specified location to complete the file import.
3. Click [Next], select [File Open Password] here, and enter the set open password in the input field below.
4. Click [Next], the tool will start to add passwords to PDF in batches, and will give a prompt after completion.
Method 2: Use Adobe Acrobat Pro DC to add an open password to the PDF
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Advantages: full function, but also very authoritative. Encryption function is very strong, security everyone recognizes. In addition to setting the opening password, you can also set the more detailed permissions of prohibiting printing and editing.
Disadvantages: The software is relatively large, and it is a bit slow to open and run. Its batch processing function is hidden deep, and the operation steps are a bit complicated and not intuitive for novices.
Operation steps:
1. Open a PDF with Acrobat Pro and click the "Protect" tool in the toolbar on the right.
2. In the protection panel, select "Protect with Password".
3. At this time, a setting box will pop up and check "Password required to open the document".
4. Enter the password in the "Document Opening Password" and enter it again for confirmation.
5. You can set a password to restrict printing and editing in "Permission" (this is optional).
6. Click "OK" and save the file. Then repeat the process for each file.
Method 3: Use the online encryption website to add a password to the PDF
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Advantages: Do not install software, open the browser can be used. The website is generally quite simple and clear, and the processing speed is fast. One or two less important files need to be encrypted and can be used temporarily.
Disadvantages: The file needs to be uploaded to someone else's server, which cannot ensure the security of file information. There are usually limits on the size and number of files, and the processed files sometimes carry the watermark of the website.
Operation steps:
1. Search for "Online PDF Encryption" in the browser, for example, find a website like iLovePDF.
2. Click the "Select PDF File" button to upload the file from the computer.
3. In the password box, enter the opening password you want to set.
4. Click "Encrypt PDF" and wait for the file to be uploaded and processed.
5. After processing, click the "Download" button to save the encrypted PDF to the computer.
Method 4: Use Microsoft Word/PPT to save as PDF encryption
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Advantages: If you are using the new version of Office (such as Word or PPT) to make files, you can directly set the password when saving it as PDF, without opening other PDF software, which is more convenient.
Disadvantages: Only suitable for "newly generated" PDFs from Office files. It is useless for PDF files already existing or sent by others. Encryption options are also relatively basic, and specific versions of Office are required to have this feature.
Operation steps:
1. edit the document in Word or PPT and click "file"-> "save".
2. Select the save location and select "PDF (*.pdf)" in "Save Type".
3. Click the "Options" button to find the settings related to "Encrypted Documents" in the pop-up window.
4. Check "Encrypt Documents with Password" and enter the password twice for confirmation.
5. Click "OK" to return, and then click "Save". The PDF generated in this way will enter the password when opening it.
Method 5: Use the PDF editor to add a password to the PDF
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Advantages: It is a flat replacement of Adobe's Acrobat, and its functions are quite complete. Provide stable PDF encryption function, some also support batch processing (may need to install plug-ins or use specific functions).
Disadvantages: The batch encryption function may not be visible when the software is opened, and needs to be found or set separately. For users who just want to add a secret, the whole software is more complicated..
Operation steps:
1. Install and open software such as Foxit PDF Editor, and then open a PDF.
2. Click the "Protection" tab at the top and find the "Password Protection" button.
3. In the pop-up window, check "Need to enter the password to open the document".
4. Enter and confirm your opening password.
5. Click "OK" and save the file.
Method 6: Use open source software PDFsam to add an open password to PDF files
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Advantages: The main function is to split, merge and rotate PDF. It can provide basic encryption, and users with low demand are enough.
Disadvantages: The software interface and operation look relatively simple, and the experience is general. As an integration tool, its encryption function may not be as useful as a specialized tool.
Operation steps:
1. Download and install PDFsam, open it and select the "Protection" module.
2. Click the "Add" button to import the PDF to be encrypted.
3. In the settings on the right, check "Set Open Password".
4. Enter the password in the password box.
5. Set the file output to the path, and then click the "Run" button below.
6. After processing, go to the output folder to find the encrypted file.
Method 7: Use Apple's "automatic operation" (Automator) to create a service to encrypt PDF
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Advantages: This is an automation tool that comes with Apple's computer system. After setting it up once, it can be used all the time. It can be made into a right-click menu service.
Disadvantages: Only available on Mac computers, and the configuration is quite complicated. Users need to figure out how to use Automator, and then build a workflow, for ordinary people still need to learn.
Operation steps:
1. Open the "Automatic Operation" application and create a new "Quick Operation".
2. Find the action [Encrypt PDF] under [PDF File] in the resource library on the left and drag it to the workspace on the right.
3. To configure this action, you can set a fixed password or select "Ask every time you run".
4. Save this workflow, the name can be called "Encrypted PDF".
5. After that, right-click a PDF file in Finder and you can see the "Encrypt PDF" option in the "Service" menu.
6. Point it, enter the password, and the encryption will be executed.
Method 8: Use mobile phone APP (such as Adobe Acrobat Reader) to add a password to PDF
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Advantages: go out for emergency use. After receiving an important PDF, you can directly add a password to it on your mobile phone and forward it. It is OK to be in a hurry temporarily.
Disadvantages: The mobile phone screen is small, the operation is not very convenient, and the processing of large files is slow. Usually only one file processing, and the functions are simplified version, security may not be as good as the software on the computer.
Operation steps:
1. Install Adobe Acrobat Reader on your mobile phone and open the APP.
Find and open the PDF file that needs to be encrypted.
3, point the bottom of the toolbar "..." More options.
4, in the menu to find "use password protection" or "encryption" function.
5, enter the password twice to confirm, click "complete" or "protect".
6. Finally, save or share the encrypted files.
Whether you're a legal person who needs to password a lot of contracts, a teacher who regularly sends encrypted test papers to students, or any working person who wants to keep his or her files safe, γ HeSoft Doc Batch Tool The [PDF add password protection] function in is a good choice for people to rest assured, it is like to give your digital documents on a reliable lock, so that you no longer worry about document leakage.