When a batch of PDF documents needs to be sent externally, many users want the recipients to be able to open and view the content normally, as well as print or copy text as needed, but not to arbitrarily edit, modify pages, or alter the document structure. This article uses HeSoft Doc Batch Tool as an example to explain how to use the "Add password protection to PDF" feature to batch-set content read-only passwords for multiple PDFs, while retaining printing and copying permissions. This is suitable for controlling permissions before batch distribution of files such as contracts, courseware, manuals, and training materials.
In daily office work, PDFs are often used for transmitting formal documents such as contracts, courseware, learning materials, quotations, product manuals, and service documents. Compared to editable formats like Word, docx, and Excel spreadsheets, PDFs are inherently better suited for maintaining layout stability, but this does not mean PDFs absolutely cannot be edited. Many PDFs can still enter "Edit PDF" mode in tools like Adobe Acrobat Pro DC, allowing you to directly select text, modify words, adjust objects, or change page content.
If you only have one or two PDFs, you can open each one to set permissions using software; however, when there are dozens or hundreds of PDFs in a folder that need to be uniformly set to "content viewing only," while still allowing the recipient to print the PDF file and copy text from the PDF, processing them one by one is very time-consuming and prone to missing a file. What this article aims to solve is exactly this problem: using the office software " HeSoft Doc Batch Tool " to batch-add a file content read-only password to multiple PDFs, achieving the effect of prohibiting editing, allowing viewing, allowing printing, and allowing text copying.
Applicable Scenarios: Which PDFs Are Suitable for Batch Setting to Content Viewing Only
Setting read-only permissions for PDFs in batches is not purely for "encryption to prevent opening," but to control editing behavior during file distribution. The approach described in this article is more suitable for these needs: the file can be opened and read, not hindering the recipient from browsing the content; the file can be printed, facilitating offline archiving or signing; the text in the file can be copied, facilitating quoting and retrieval; but you do not want the other party to directly modify the body text, titles, table of contents, page elements, or original formatting.
Common scenarios include: service descriptions, product manuals, training courseware, and rules and regulations sent externally by enterprises; learning materials, English learning PDFs, and exam question analyses distributed by schools or training institutions; contract samples, quotation descriptions, and proposal PDFs in business communications; and internally shared process documents, project descriptions, and knowledge base materials. Especially when these files are already centrally stored in a single folder, using a batch processing tool can significantly reduce repetitive operations.
It is important to note that PDF permission protection and "completely prohibiting opening" are not the same concept. The goal of this article is to allow PDF content to still be viewed, only requiring a permissions password when editing is attempted. This balances the efficiency of material dissemination while reducing the risk of content being altered at will.
Effect Preview: PDFs Can Be Directly Edited Before Processing, but Editing Requires Password After Processing
Before Processing: Multiple PDF Files Awaiting Unified Permission Setting
Before processing, multiple PDF files have been prepared in the folder, such as human-exploration.pdf, Learn_English_in_an_easy_fast_and_fun_way.pdf, learning-tips.pdf, SampleContract-Shuttle.pdf, services.pdf, etc. Setting protection for these files one by one would take up a lot of time.

Judging by the opening effect before processing, the sample PDF can enter edit mode in Adobe Acrobat Pro DC, with text objects like "Contents" on the page being selected, and the format editing panel shown on the right side. This indicates the file currently has no editing restrictions, and recipients using software that supports PDF editing might directly modify the content.

After Processing: Viewing Is Unaffected, but a Permissions Password Is Required for Editing
After processing is complete, when trying to edit this file again in a PDF editing tool, you will see "(SECURED)" displayed in the file title bar, and a password prompt will pop up. The prompt content indicates the file is protected and requires a permissions password; if you do not have the password, you need to contact the document author. Meanwhile, the page content can still be viewed normally, which precisely meets the office need of "content viewing only, but allowing printing or text copying."

The key to this effect lies in: not setting an "Open Password" for the PDF, but setting a "File Content Read-Only Password" for the PDF, and in the permission options, allowing printing and allowing text copying. This way, recipients are not blocked when opening the document for reading, but if they try to modify the content, they will be intercepted by the permission protection.
Operating Steps: Using HeSoft Doc Batch Tool to Batch-Set PDF Read-Only Protection
Step 1: Enter the PDF Tool and Select "PDF Add Password Protection"
Open HeSoft Doc Batch Tool , and in the left-side function category, go to "PDF Tools." The main interface will list multiple PDF-related batch functions, such as finding and replacing keywords in PDFs, merging PDF folders, removing PDF password protection, adding watermarks to PDFs, converting PDFs to Word, and converting PDFs to JPG images. Here, you need to select "3. PDF Add Password Protection." This function description is for batch-adding protection measures such as file open passwords and read-only passwords to PDFs.

The purpose of selecting this function is to enter the dedicated PDF permission protection workflow. Compared to manual setting one by one, the advantage of the batch tool is that it can import multiple files at once and apply the same set of protection rules to them, making it suitable for office scenarios with a large number of files.
Step 2: Add the PDF Files to Be Processed or Import from a Folder
After entering the "PDF Add Password Protection" page, the first step is to "Select the records to be processed." On the upper right side of the page, you can see buttons like "Add File," "Import Files from Folder," "Clear," and "More." You can click "Add File" to manually select multiple PDFs, or, if the files are already concentrated in one directory, use "Import Files from Folder" to add them all at once.

In the screenshot, 5 PDF files have been imported, and the table displays columns for serial number, name, path, extension, creation time, modification time, and actions. The summary at the bottom shows the record count is 5. This list is used to confirm whether the objects for this batch process are correct. If you find a PDF that does not need to be processed has been imported, you can remove it using the delete icon in the actions column; if imported incorrectly, you can also use "Clear" to add them again.
After confirming the file list is correct, click "Next" at the bottom to enter the processing options setting. It is recommended to double-check the file paths before proceeding, especially when there are many PDFs with the same name, to avoid mistakenly processing files in other directories.
Step 3: Disable the File Open Password and Enable the File Content Read-Only Password
The second step is "Set Processing Options." Here you will see the two options "File Open Password" and "File Content Read-Only Password." Since the goal of this article is to allow others to view PDF content normally, enabling "File Open Password" is not recommended. If an open password is enabled, recipients will need to enter a password when opening the file, which would affect normal reading and distribution.
In the screenshot, "File Open Password" is in a disabled state, while "File Content Read-Only Password" is in an enabled state, and the sample password "123456" has been entered in the input field. This password is the permissions password, used to restrict protected operations like editing. In actual use, it is not recommended to use overly simple numeric passwords; a more secure password should be set according to company or team regulations.

The result of this setting is: the PDFs can still be opened and viewed, but when a user attempts to edit the file content, the software will require the permissions password. That means reading is unaffected, while editing is restricted.
Step 4: Enable Allowing Printing of PDF Files and Allowing Copying of Text from PDFs
On the same processing options page, you can also see two toggles: "Allow printing of PDF files" and "Allow copying of text from PDFs." Both options are enabled in the screenshot. With these settings, recipients can still print the PDF and copy text content from it for retrieval, quoting, or organizing, even without the editing permissions password.
This step is very important. Many users think that after setting read-only protection, all operations will be prohibited, but in fact, permission controls can be more granular. The need in this article is not to stop users from reading the materials, nor to prevent them from using the content reasonably, but to avoid them directly altering the PDF's original text. Therefore, you should keep the printing and copying permissions enabled while restricting editing with the read-only password.
Step 5: Set the Save Location and Start Batch Processing
After completing the permission options, click "Next," and follow the page flow to enter "Set Save Location." The step bar at the top shows that the entire flow includes selecting records, setting processing options, setting the save location, and starting processing. For ease of backtracking, it is recommended to save the processed PDFs to a new folder, such as "Read-Only Permissions Set" or "PDF Read-Only Version," and not to directly overwrite the original files, unless you have already made a backup.
After setting the save location, enter "Start Processing" and execute the task. The software will batch-process the PDF files according to the list of records, and after completion, you can check the results in the save directory. For dozens or even more PDFs, this workflow can avoid the inefficient operation of repeatedly opening, clicking, and entering passwords.
FAQ and Precautions
1. What is the difference between a read-only password and an open password?
An open password is used to control whether a PDF can be opened; a read-only password is used to control file content-related permissions, such as editing and modification. The scenario in this article requires others to be able to view the content, so the file open password should be disabled, and the file content read-only password should be enabled.
2. Can I still print and copy text after setting this?
Yes, as long as "Allow printing of PDF files" and "Allow copying of text from PDFs" are enabled in the processing options. The example in the screenshot enables the read-only password while retaining printing and copying permissions.
3. Why can I still see the PDF content after processing?
This is a normal result. The goal of the settings in this article is not to prohibit opening, but to restrict editing. Recipients can browse the PDF content, but will be required to enter a permissions password when attempting to enter an editing operation.
4. Is it necessary to keep the original files?
It is recommended to keep them. It is best to back up the original PDFs before batch processing, or save the output results to a new directory. This way, even if you need to adjust permissions or reset passwords later, you can return to the original version and reprocess.
5. How should the password be managed?
The read-only password, which is the editing permissions password, should be uniformly managed by the document owner or team. Do not directly expose the password in email bodies, public chat groups, or file names, and do not use overly simple passwords for a long time.
Summary: Reduce the Time for Repeatedly Setting PDF Permissions with Batch Processing
When you need to set many PDFs to content viewing only, while allowing printing and text copying, manually setting permissions one by one is slow and prone to errors. HeSoft Doc Batch Tool , as a batch file processing software designed for office scenarios, can use the "PDF Add Password Protection" function to import multiple PDFs at once, uniformly enable the file content read-only password, and retain printing and copying permissions.
If you are organizing contracts, courseware, manuals, learning materials, or service documents, it is recommended to first gather the PDFs into the same folder, use the batch import method to add them to the software, and then follow the steps in this article to set read-only protection and output them to a new directory. This ensures the files can be distributed and read normally, while reducing the risk of content being edited arbitrarily, making PDF permission management more efficient and standardized.