The form fields, electronic stamps, date stamps, or annotation objects in a PDF, if not flattened, may still be selectable and movable when opened, circulated, or archived. This article uses HeSoft Doc Batch Tool as an example to explain how to import multiple PDFs in bulk and use the "Flatten PDF" feature to solidify the current appearance of form fields into regular page content, helping office staff quickly complete the batch processing of PDF documents such as contracts, stamped files, and approval forms.
Many office workers encounter a detail issue when handling PDFs: the file has been stamped, forms filled in, and dates added, looking ready to send or archive, but upon opening the PDF they find the stamp can still be selected, and form areas still exist as editable controls. For formal documents like contracts, authorization letters, approval forms, registration forms, and acceptance certificates, this state is not ideal.
If electronic seals, date stamps, form fields, or annotation objects in a PDF are not flattened, several subsequent issues may arise: recipients accidentally moving stamps; inconsistent display across different PDF readers; form fields being edited again; archived files not appearing stable enough. Especially when a folder contains a large number of PDFs, checking and handling them by opening each one individually is not only time-consuming but also prone to missing some files.
This article introduces a method more suited for batch office processing: using the "Flatten PDF" feature in " HeSoft Doc Batch Tool " to solidify the current appearance of form fields in multiple PDFs into regular page content. Its core value is not single-file editing, but batch processing for a large number of files, helping users reduce repetitive work and improve efficiency in document organization, archiving, and delivery.
Applicable Scenarios: Why You Should Flatten PDF Forms and Electronic Seals
PDF flattening is often used after a document is finalized. "Flattening" can be understood as fixing the interactive objects on a page according to their current display effect, making them part of the page content. It is commonly used for handling PDF form fields, electronic stamps, date stamps, annotations, signature objects, etc.
In office scenarios, the following requirements are very common:
- Finalizing Stamped PDFs: An electronic seal or date stamp has been placed in the file, and you want to ensure it cannot be moved when sent externally.
- PDF Form Submission: Form fields have been filled in, and the entries need to be fixed to prevent recipients from seeing editable fields.
- Contract Archiving: Contract PDFs need long-term preservation, requiring signatures, dates, and other content to display stably.
- Batch File Delivery: A batch of materials contains multiple PDFs that all need uniform solidification before submission.
- Reducing Manual Operation: Avoiding the need to open and manually process PDFs one by one, delegating repetitive procedures to a batch processing tool.
If you often search for issues like "PDF stamp non-editable," "PDF form field solidification," or "batch flatten PDF files," you likely fall into this category of needs.
Effect Preview: PDF Stamp in a Selectable State Before Processing
In this example, the folder to be processed contains multiple PDF files named 1.pdf, 2.pdf, 3.pdf, 4.pdf, and 5.pdf. In practical work, this might correspond to multiple contracts, various customer materials, batch approval documents, or a set of form PDFs needing uniform submission.
Opening one of the unprocessed PDFs, you can see a red date stamp placed on the page. A blue border and control points appear around the stamp, indicating it can still be selected. This might not significantly impact regular reading, but for formal document circulation, it means it has not yet fully become fixed page content.
This situation is common with electronic seals, date stamps, signature images, PDF annotations, and form fields. Users might think the content is finalized, but it is merely overlaid on the page as an object. When passing the file to others, recipients using different software might still be able to select these objects or even accidentally move them.
Post-Processing Effect: Electronic Seal and Form Appearance Solidified into the Page
After processing with "Flatten PDF," reviewing the same page shows the red date stamp still displayed on the right side of the page, visually maintaining its original content and position. However, unlike before processing, the stamp no longer shows an editable blue selection box. It has been fixed into the page content according to its current appearance.
The value of this processing lies in "stability." When sending the file to clients, colleagues, or an archiving system, the recipient sees a PDF that is closer to a finalized state. For already filled form fields, flattening also reduces the risk of them being modified again or displaying abnormally.
Operation Steps: Batch Flatten Multiple PDFs
Step 1: Open the Software and Enter the PDF Tools Category
Upon launching " HeSoft Doc Batch Tool ", the software name is visible in the upper left corner of the interface. The left-side navigation bar provides multiple categories for office file processing, such as Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, Text Tools, Image Tools, etc. As the files to process here are PDFs, select "PDF Tools" on the left.
After entering PDF Tools, you can see various batch processing functions related to PDF, such as adding page numbers, extracting pages and merging, cropping pages, modifying page layouts, format conversion, etc. According to the screenshot, the selection needed here is "21, Flatten PDF." The function description states it batch flattens PDF files and solidifies the current appearance of form fields into regular page content.
The purpose of this step is to find the functional entry corresponding to "PDF form field solidification" and "PDF stamp fixing." Clicking this function will lead the software to a dedicated batch processing page.
Step 2: Add PDF Files on the Task Page
After entering the "Flatten PDF" page, you can see top buttons including "Add File," "Import Files from Folder," "Clear," and "More." This indicates the software supports adding files individually and batch importing from a folder. For a few PDFs, you can directly click "Add File"; for many PDFs in a folder, using "Import Files from Folder" is more efficient.
The screenshot shows 5 PDFs have been imported, with the list displaying each file's sequence number, name, path, extension, creation time, and modification time per row. The file paths are shown as D:\test\1.pdf, D:\test\2.pdf, etc., indicating these files are from the same test directory. The summary section at the bottom displays a record count of 5, allowing users to confirm the number of files for this batch processing.
The expected result of this step is that all PDFs needing flattening appear in the list. If files not requiring processing are imported, they can be removed via the delete icon in the operation column; if imported incorrectly, you can also use "Clear" to reselect.
Step 3: Verify the File List to Avoid Mistakes
The advantage of batch processing is speed, but it also requires confirmation before starting. Since flattening changes the status of form fields, stamps, or annotation objects in the PDF, it is recommended to carefully check the list before clicking next.
Checks can be performed on the following aspects:
- Do the file names belong to the batch to be processed this time?
- Is the extension pdf?
- Are the paths from the correct folder?
- Does the record count match expectations?
- Are there any original templates or non-finalized files that should not be processed?
Especially for important documents like contracts, quotations, and stamped files, it is advisable to first confirm that the stamps, dates, signatures, and form contents in each PDF are correct. Flattening is suitable for execution after a file is finalized, not while it still requires frequent modifications.
Step 4: Click Next and Set the Save Location
The "Next" button is displayed at the bottom of the page, and the progress bar above shows step 1 is "Select records to process," followed by "Set save location" and "Start processing." Therefore, after confirming the file list is correct, click "Next" to proceed to setting the save location.
Setting the save location is very critical. It is recommended not to mix processed files with the originals, and especially not to overwrite the originals directly without a backup. A safer practice is to create a new output directory, such as "PDFs After Flattening," "Stamped Final Version," or "Submission Version." This allows keeping both the original and processed files, facilitating verification, rollback, and reprocessing.
In enterprise office work, keeping the originals is particularly important. For example, if a date stamp is placed in the wrong position or a form field is incompletely filled, retaining the original PDF allows the user to readjust and then batch process again.
Step 5: Start Processing and Spot-Check Output PDFs
After setting the save location, you can enter the "Start Processing" phase. The software will execute the flattening operation on multiple PDFs sequentially according to the records in the task list. Compared to manually opening and saving each PDF one by one, batch processing significantly reduces repetitive clicks and waiting time.
After processing is complete, it is recommended to spot-check at least a few output files. Key inspection points include: Is the stamp still in the correct position? Is the form text fully displayed? Are elements like signatures, dates, and annotations preserved? Do objects that were selectable before processing no longer appear in an editable form? Such spot checks can ensure the batch output results meet archiving or delivery requirements.
FAQ and Considerations
1. Can form fields still be edited after flattening?
The purpose of flattening is to solidify the current appearance of form fields into regular page content. Therefore, after processing, the file is generally no longer suitable for continued editing as a fillable form. If field content still needs modification, filling and proofreading should be completed before flattening.
2. Will the electronic seal disappear after flattening?
As seen from the post-processing effect, the date stamp remains displayed on the page. Flattening does not remove the stamp; it fixes its current appearance onto the page. Ensure the stamp's position, size, and content are correct before processing.
3. Can flattening solve the problem of inconsistent PDF display across different readers?
For content like form fields, annotation appearances, and stamp objects, flattening can reduce display differences caused by different readers interpreting the objects. It solidifies the current visible appearance, helping to make the file more stable during circulation and archiving.
4. Is it suitable to flatten all PDFs?
Not all PDFs must be flattened. If a file is still in the editing stage, or if forms still need further filling, it is not advisable to process it prematurely. Flattening is more suitable for PDFs that are finalized, about to be sent, or ready for archiving.
5. How to reduce risks during batch processing?
It is recommended to back up the original files first, or save output files to a separate folder; verify the file list before processing; spot-check results afterward. This way, you can enjoy the efficiency gains of batch processing while also ensuring the security of important files.
Conclusion: Making PDF Finalization More Stable and Batch Processing More Time-Efficient
If PDF form fields, electronic seals, date stamps, and annotation objects are not flattened, they may introduce unnecessary risks during subsequent circulation, submission, and archiving. By flattening the PDF, you can fix the current display effect of these objects into the page content, bringing the file closer to an official finalized state.
HeSoft Doc Batch Tool as office software is suitable for solving the repetitive processing problems of large numbers of files. Facing a scenario where multiple PDFs need uniform solidification, simply enter PDF Tools, select "Flatten PDF," import files, set the save location, and start processing to batch-complete work that originally required individual operation. It is recommended that you complete content proofreading for contracts, stamped documents, and form PDFs before using the batch flattening feature to generate stable versions for sending or archiving.