This article explains how to batch convert the page content of multiple PDF files into image format and then output them as PDF files, thereby reducing the risk of text being directly selected and copied. The article combines the before-and-after effects and software operation screenshots to demonstrate how to select "Convert PDF pages to image format" in HeSoft Doc Batch Tool , batch import PDFs, set the save location, and start processing, suitable for scenarios such as material distribution, courseware sharing, and internal document circulation.
In daily office work, PDFs are often used to distribute materials, test papers, courseware, quotations, manuals, or internal reference documents. PDFs appear to have a "fixed layout," but the text in many PDFs can actually still be selected, copied with a mouse, or even pasted in full paragraphs into other documents. If you only want to provide a read-only version of a file and do not want others to easily copy the text content inside, you can convert the PDF page content into image form and then re-output it as a PDF.
The problem this article aims to solve is clear: batch convert page content in PDFs to image form, turning originally selectable text into part of the page image, thus preventing the text and content from being directly copied. The office software used here is HeSoft Doc Batch Tool . Its core value is batch file processing, making it suitable for handling multiple PDFs at once and reducing the manual operations of repeated opening, saving as, and exporting.
It should be noted that converting PDF pages to image form is not "encrypting a PDF" or "locking its permissions." It primarily changes the presentation mode of the page content. After processing, the text can usually no longer be directly selected and copied in a standard PDF reader as before, becoming more like viewing an image. This method is very practical for batch-creating read-only versions of PDF files and preventing ordinary copying.
Applicable Scenarios: Which PDFs Are Suitable for Conversion to Image Form to Prevent Copying
Converting PDF page content to image form is suitable for files that need to preserve their layout for easy reading, but where direct text copying by users is undesirable. For example, handouts distributed by training institutions, internal company policy documents circulated among employees, external product brochures, e-book sample chapters, exam review materials, or contract template previews might all have the need to be "viewable but not easily copied."
If you only have one PDF, you can manually export images or take screenshots to reorganize it; but when the number of files reaches dozens or hundreds, processing them one by one is very time-consuming. In the pre-processing screenshot, you can see multiple PDF files in the same folder, such as 1.pdf, 2.pdf, 3.pdf, 4.pdf, and 5.pdf. A typical scenario is needing to batch-process a group of documents uniformly.
This type of batch processing task is precisely where office software tools show their value. HeSoft Doc Batch Tool centralizes processing functions for common office files like PDF, Word, Excel, PowerPoint, images, and text into a single toolbox. Users do not need to open PDFs one by one or repeatedly export them from a reader. They only need to add all the PDFs requiring processing at once to perform batch conversions according to a unified rule.
For users searching for "PDF copy protection," "PDF text cannot be copied," "convert PDF page to image," or "batch PDF to image form," the method in this article does not focus on splitting a PDF into a pile of JPG images, but rather converting each page's content into image form and then outputting the result as a PDF file. Files processed this way can still be opened, paged through, and printed using a PDF reader, with the distribution habits remaining largely unchanged.
Effect Preview: Text can be selected and copied before processing, but becomes image content afterwards
Before processing, the text in the PDF is selectable. The screenshot below shows a PDF vocabulary list page where the mouse can select the English words and their definitions, and options like "Copy" appear in the right-click context menu. This indicates the text on the page is still a text object, and the recipient can conveniently copy the content after opening the PDF.
This is certainly not a problem for ordinary materials; but if what you are sending out are paid course handouts, internal training materials, reusable templates, or text content you do not wish to be easily reproduced, this copyable state could pose a risk. Even without the source file, others can still directly copy the text, then paste it into Word (.docx, .doc), TXT, or web editors for secondary use.
After processing, the display effect for the same PDF page is still maintained as a PDF page, but the page content is now presented in image form. The right-click context menu shows image-related options like "Copy Image" or "Save Image As..." instead of directly copying text. In other words, the page looks like the original content, but the text no longer exists as a directly selectable digital text layer.
From an office use perspective, this processing method offers two advantages: first, readers can still open, page through, and view it like a normal PDF; second, the path for ordinary text copying is blocked, reducing the possibility of content being easily copied and pasted. For uniform processing before sending out materials in batches, this is far more efficient than screenshotting page by page and then manually assembling a PDF.
Operational Steps: Using HeSoft Doc Batch Tool to Batch Convert PDF Pages into Image Form
The specific operational process is described below according to the order of the screenshots. The core of the entire process is: find the "Convert PDF Pages to Image Form" function in the PDF tool, batch-add PDF files, confirm the pending processing list, then proceed to the next step to set the save location and start processing.
Step One: Enter the PDF tools and select "Convert PDF Pages to Image Form"
After opening HeSoft Doc Batch Tool , you can see function categories on the left side, such as "Home, Task Flow, All Tools, File Name, Folder Name, File Management, Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, Text Tools, Image Tools, Video Tools, Audio Tools," etc. Since the processing objects are PDF files, first enter "PDF Tools" on the left.
In the list of PDF tool functions, find number 22, "Convert PDF Pages to Image Form." The description text in the screenshot shows that this function is used to "batch convert each page of a PDF into an image form and still output a PDF file," with the purpose of preventing the text and content from being directly copied. Click this function card to enter the corresponding processing interface.
The operational goal of this step is to select the correct batch processing function. Be careful not to mistakenly select "Convert PDF to JPG Images" or other image export functions. What is needed here is to image the PDF page content while still outputting a PDF file, making the processed file more suitable for continued distribution as a PDF.
Step Two: Add the PDF files to be processed
After entering the "Convert PDF Pages to Image Form" function, you can see buttons like "Add Files," "Import Files from Folder," "Clear," and "More" at the top. The middle of the interface shows the pending processing record list, and the bottom has a "Next" button. According to the screenshot, 5 PDF files have been imported, named 1.pdf, 2.pdf, 3.pdf, 4.pdf, and 5.pdf.
If your PDF files are concentrated in a single folder, you can use "Import Files from Folder," which adds all PDFs from that folder to the list at once. If only processing a few files, you can use "Add Files" to select them individually. After import, the list displays information like serial number, name, path, extension, creation time, and modification time, making it easy to verify if the correct files were selected.
The expected result of this step is that all PDFs requiring copy-prevention processing appear correctly in the record list. The bottom of the screenshot shows "Record Count: 5," indicating that 5 PDFs will be batch-processed. If incorrectly imported files are found, you can click the delete icon in the operation column of the corresponding row to remove them. If the overall list is incorrect, you can use "Clear" and then re-add.
Step Three: Confirm the file list and click "Next"
When batch processing files, confirming the list is very important. It is recommended to focus on checking three pieces of information: whether the file names are correct, whether the file paths point to the target folder, and whether the extension is .pdf. For office scenarios with many similarly named files or versions, this step helps avoid processing the wrong version or an unfinalized document.
After confirming correctness, click the "Next" button at the bottom of the interface. The process progress in the screenshot is shown as three steps: Step One "Select records to process," Step Two "Set save location," and Step Three "Start processing." The current screenshot is at Step One, so clicking "Next" will lead to the save location setting stage.
The operational goal of this step is to submit the to-be-processed file list to the next phase. The expected result is that the software enters the save location setting page, where the user can decide where the processed PDFs will be saved. For batch tasks, it is recommended not to overwrite the original files directly, but to save them to a new output folder for easy comparison of before-and-after effects and to retain the original editable or copyable version.
Step Four: Set the save location to avoid overwriting the original PDFs
According to the interface flow, the second step is "Set save location." Although the screenshot does not show the specific settings page, it can be reasonably inferred from the step name that this is for specifying the output location for the processed files. It is recommended to name the output directory with easily identifiable terms like "PDF Page Imaging," "PDF Copy-Proof Version," or "Output PDFs."
The purpose of setting the save location is to unify the output of batch processing results, avoiding them being scattered across different folders. For enterprise or team materials, folders can be further organized by project, date, or customer name, such as "2026_Training_Materials_PDF_Image_Version" or "Customer_Info_CopyResistant_PDF." This makes subsequent sending, archiving, and reviewing much more convenient.
It is particularly important to note that if the software provides overwrite or save-as related options, always prioritize saving to a new location. After converting PDF pages to image form, the text layer changes. If the original files are directly overwritten, it will be troublesome to copy text, search text, or re-edit content later. Keeping the original PDF is a crucial step in standard office workflows.
Step Five: Start processing and check the output results
After completing the save location setup, the third step, "Start processing," begins. Once started, the software will perform the page imaging conversion on the multiple PDFs in the list one by one. Upon completion, open the output PDF for a check, focusing on two main points: first, whether the page layout remains normal; and second, whether the text can no longer be directly selected and copied as before.
From the screenshot showing the processed result, it can be seen that the page content is still the original table and text, but the right-click context menu now shows options like "Copy Image." This indicates the page is closer to a complete image, and the ordinary text copying operation has been replaced by an image copying one. For a read-only PDF version intended to reduce the risk of text copying, this is the expected result.
Frequently Asked Questions and Notes
1. Can the PDF still be opened and paged through after being converted to an image form?
Yes. The feature of this function is that after converting PDF page content to image form, the output is still a PDF file. That is, the file extension remains .pdf, and users can still open, page through, view, and print it using common PDF readers. The difference is that the page content is no longer directly selectable text.
2. Is it absolutely impossible to extract text after this processing?
It should not be understood as absolute protection against extraction. Image-based pages can prevent ordinary copy-paste, but if the recipient uses OCR (Optical Character Recognition) tools, text can still be recognized from the image. Therefore, it is suitable for lowering the threshold for ordinary copying and reducing casual copying, but it is not equivalent to absolute protection in a legal or technical sense. If the file involves highly sensitive information, other measures like watermarks, permission controls, and access management should also be combined.
3. Will the file size become larger after processing?
Possibly. Because text and vector content are converted to images, the internal storage method of the PDF changes, and the file size may increase. The specific size depends on the number of pages, image clarity, and the complexity of the original PDF content. For PDFs with 180 pages or hundreds of pages, it is recommended to test with a sample document first before batch-processing all files.
4. Can I search for text in the PDF after conversion?
Usually, you cannot directly search text as before. Since the text has become an image, the PDF reader cannot search based on a text layer. If the document later requires full-text search, copy quoting, or accessibility reading, be sure to retain the original PDF. The processed version should only be used as an externally sent or read-only display version.
5. What is the difference from PDF encryption or copy restrictions?
PDF encryption or copy restriction usually controls behaviors like copying, printing, and editing through permission settings, but different readers may support these permissions to varying degrees. Page imaging turns text objects into image content, reducing the possibility of "selecting and copying text" at the source. The two approaches are different, and you can choose based on actual needs. This article describes the batch page imaging method.
Summary: Batch Page Imaging Makes PDF Distribution More Worry-Free
If you need to send a batch of PDFs to students, clients, colleagues, or external collaborators, and simultaneously wish to prevent the text inside from being easily selected and copied, then "Convert PDF Pages to Image Form" is an efficient and practical processing solution. It can change the page content into image form while retaining the PDF reading experience, reducing the risk of ordinary copy-paste.
HeSoft Doc Batch Tool , as a batch processing software designed for office scenarios, is suitable for handling multiple PDF files. Compared to manually opening each PDF, taking screenshots page by page, and then reassembling the file, this tool allows you to complete the batch conversion in a single workflow of adding files, setting the save location, and starting the process, drastically reducing repetitive work.
It is recommended that before formal processing, you first test with 1 or 2 PDFs. Once you confirm that the display effect, file size, and copy-prevention effect all meet expectations, then batch-import all PDF files. For materials intended for long-term distribution, please also save both the original PDF and the image-format PDF versions: the original for internal editing and searching, and the image-format version for external reading and distribution.