Many training materials, exam documents, and acceptance files need a unified "PASSED" or similar approval stamp after review. Manually stamping PDFs one by one is not only inefficient but also prone to inconsistent stamp positions and sizes. This article explains how to use the PDF stamping feature of HeSoft Doc Batch Tool to import multiple PDFs at once, select an approval stamp image, set all pages or a specified page range, and uniformly configure the stamp position and size, thereby quickly completing batch stamping of multiple PDFs.
In scenarios such as training, exams, project acceptance, and document review, the "PASSED" stamp is a very common identifier. It can visually indicate that a PDF document has passed inspection, evaluation, or approval. The problem is that in practice, you often need to stamp a batch of PDFs, not just one. If you still use a manual method, you need to open the first PDF, insert the stamp, adjust its position, save, and then open the second PDF to repeat the same actions. The more files there are, the more time-consuming it becomes, and the final stamp's position, angle, and size may also be inconsistent.
This article will use HeSoft Doc Batch Tool as an example to explain how to use office software to batch-add a "PASSED" approval stamp to multiple PDFs. This tool is positioned as a batch document processing software for office scenarios, with its core value being the consolidation of repetitive file operations into a single workflow. For tasks like batch PDF stamping, you only need to import the files and set the stamp rules once, and the software will automatically process multiple PDFs.
Applicable Scenarios: What Office Tasks are Suitable for Batch Adding PASSED Stamps
Batch adding PASSED stamps is common in education and training, internal reviews, project document acceptance, quality checks, and file archiving. For example, after correcting student materials, a training instructor needs to add an approval stamp to the PDF courseware or assignments that have passed; a project manager needs to add an approval identifier to delivery documents after acceptance; internal company auditors may also need to uniformly add a status stamp to confirmed PDF files.
These scenarios typically have three characteristics: first, a large number of PDFs, possibly scattered across different folders; second, a fixed stamp style, for example, uniformly using the same PASSED image; third, identical stamping rules, such as all placed in the bottom right corner, or added to all pages or the first page only. As long as these features are present, it is very suitable to use a batch processing tool instead of manual repetitive operations.
Effect Preview: From Unstamped PDFs to Uniform PASSED Stamp
Before processing, multiple PDF files exist in the folder, including 1.pdf, 2.pdf, 3.pdf, and 4.pdf in the example. They all need to have the same stamp added. If processed individually, you would have to repeat the opening and saving actions at least four times; if the number of files is larger, the labor cost increases further.

Opening one of the PDFs shows that the page content is displayed normally, but the blank area indicated by the arrow has not yet had any stamp added. This blank space on the page is usually suitable for placing an approval stamp, as it will not affect the reading of the table of contents, body text, or page numbers.

After processing, a green PASSED stamp appears on the PDF page. The stamp is located on the lower right part of the page, with a slight tilt angle, making it eye-catching without covering the main text content. The advantage of batch processing is that the other imported PDFs will also have stamps added according to the same rules, ensuring a consistent overall effect.

Operation Steps: Batch Adding a Uniform Approval Stamp to Multiple PDFs
Step 1: Open the PDF Add Stamp Function
After launching HeSoft Doc Batch Tool , select "PDF Tools" from the function categories on the left. The main area of the software will display multiple PDF-related functions, such as PDF Add Password Protection, PDF Add Watermark, PDF Add Stamp, PDF to Word, PDF to JPG Image, etc. Here, you need to click "PDF Add Stamp".
The screenshot highlights the "PDF Add Stamp" function card, indicating that this function, specifically for batch adding stamps to PDFs, should be used. For adding a PASSED approval stamp, this function is more suitable for batch tasks than a typical PDF viewer, as it is designed for unified processing of multiple PDF files, not just a single document.

Step 2: Batch Import PDFs to be Stamped
After entering the function page, the first step is "Select records to process". The top of the interface provides two main entry points: "Add Files" and "Import Files from Folder". If the number of PDFs is small, you can click "Add Files" directly; if all PDFs are located in a single folder, using "Import Files from Folder" is usually more efficient.
In the example, 4 PDFs have been imported, and the list displays the file name, path, extension, creation time, and modification time. This information allows users to quickly check if the correct files have been imported. There is also a delete operation on the right to remove any PDFs that don't need processing. The "Clear" button at the top is suitable for restarting if an error is made during import.

It is recommended not to rush into the next step at this point, but to first check if the record count matches the actual number of files. For example, the bottom of the screenshot shows a record count of 4. If you originally planned to process 4 PDFs, this indicates the imported quantity is correct. A prerequisite for batch processing is accurate input files; input errors will lead to output that does not meet expectations.
Step 3: Select the Page Range for Applying the PASSED Stamp
After clicking "Next", you enter the "Set Processing Options" section. In the "Processing Range", you can choose which pages the stamp will be added to. The screenshot shows "All Pages" selected, which means the stamp will be added to every page. If your approval stamp only needs to appear on the first page, you can select the first few pages; if it needs to be on the last page or a signature page, you can use the last few pages; if there are page number rules, you can also consider odd pages, even pages, or customize.
The page range setting is very important. For reading-oriented PDFs, adding the stamp to all pages can reinforce the status identifier, but care must be taken not to affect the body text; for formal documents, sometimes adding the stamp only to the first page or cover is sufficient. It is recommended to choose based on the unit's document specification, rather than blindly stamping all pages.
Step 4: Select Normal Stamp and Import Stamp Image
In the "Stamp Type" area, the example selects "Normal". The normal stamp is suitable for adding a stamp image to a fixed position on a PDF page, such as PASSED, Approved, Archived, etc. The screenshot also shows a "Split Seal" option, but since this case involves a single-page fixed-position approval stamp, selecting the normal stamp better fits the requirement.
Next, click "Select File" in the "Stamp Image" area to import the prepared PASSED stamp image. The screenshot shows "1 file selected", indicating that the stamp image has been recognized by the software. It is recommended to use a clear PNG or common image format and try to ensure the edge of the stamp body is clean. The better the image quality, the more stable the display effect will be after adding it to the PDF.

Step 5: Set Stamp Position, Angle, and Size
After the stamp image is imported, you need to set where it appears on the PDF page. The example selects "Fixed Position" and chooses the bottom-right corner area from the nine-grid layout. This way, the processed PASSED stamp will uniformly appear at the lower-right position on the page, consistent with the result in the effect preview.
The "Effect" area on the right provides multiple adjustment items, including rotation angle, trim blank edges, opacity, and scale. The screenshot shows the "Scale" option is enabled, with a slider for size adjustment. In practice, if the stamp is too large, it might obscure the body text; if too small, it might not be prominent enough. It is recommended to test-process one or two PDFs first, confirm the stamp size and position are suitable, and then process all files.
The rotation angle also affects the realism of the stamp. The processed PASSED stamp in the example has a tilt effect, making it visually closer to a physical stamp impression. If your stamp is a formal corporate seal, you can also decide whether to rotate based on specifications.
Step 6: Set Save Location and Execute Batch Processing
After completing the processing options settings, click "Next" to proceed to the save location setting and processing start phase as guided by the wizard. For ease of management, it is recommended to save the processed PDFs to a separate folder, such as "Stamped PDFs" or "PASSED Output Files". This allows you to retain the original files and facilitates quick checking of the processing results.
Once processing begins, the software will sequentially perform the stamp addition operation on the multiple PDFs in the list. After processing is complete, open the output files to view and confirm that the PASSED stamp has appeared in the specified position. If the effect meets expectations, the output files can be used for archiving, sending, or subsequent workflows.
Frequently Asked Questions and Precautions
1. Can the PASSED stamp be added only to the first page?
Yes. As seen in the screenshot, the processing range includes options like "the first few pages". If you only want to add the stamp to the first page of the PDF, you can select the corresponding first few pages range without covering all pages.
2. What should be noted when batch importing a folder?
Using "Import Files from Folder" can improve import efficiency, but you still need to check the list after import. Focus on checking the file names, extensions, and record count to avoid adding PDFs that don't need processing to the task.
3. Why is it recommended to choose a blank area for the stamp position?
Stamps in PDFs are usually used to identify status and should not affect readability. Placing the stamp in the bottom right corner, near the footer, or in the margin area can keep it noticeable while reducing the risk of covering the body text.
4. Is testing needed before processing?
If the stamp image is large in size or the PDF layouts differ significantly, it is recommended to test with a small number of files first. After confirming the position, scale, and opacity are suitable, you can then batch-process all PDFs, reducing the need for rework.
Summary: Batch PDF Stamping Makes Approval Identifiers More Uniform
Uniformly adding a PASSED stamp to multiple PDFs seems like a small operation, but it can consume a significant amount of manual time when the file count is high. Using HeSoft Doc Batch Tool , you can add multiple PDFs to the processing list at once, uniformly select the stamp image, uniformly set the page range, stamp position, and display effect, and then batch-generate the result files.
This method not only improves efficiency but also ensures the PDF stamp position, size, and style remain consistent. It is suitable for office scenarios like training, auditing, acceptance, and archiving that require standardized document processing. If you have a batch of PDFs that need an approval stamp, it is recommended to first organize the PDFs and stamp image, and then complete the batch processing by following the steps in this article.