Many PDF files are saved with temporary names like 1.pdf and 2.pdf, while the actual identification codes for archiving and retrieval are printed beneath the barcode images on the PDF pages. This article introduces how to use HeSoft Doc Batch Tool to automatically rename PDF files in batch by recognizing the first barcode image and extracting the barcode text as the file name, converting meaningless file names into code-based file names. It is suitable for batch PDF management scenarios such as document archiving, logistics receipts, inspection reports, learning materials, and electronic vouchers.
In daily office work, PDF files often come from scanning, exporting, system downloads, or batch generation. When you first get the files, the names might just be 1.pdf, 2.pdf, 3.pdf, 4.pdf, making it impossible to directly determine which document, order, or number each file corresponds to. The truly useful information is often within the PDF content, such as a barcode at the top or right side of the page, along with the numeric text below the barcode. If you open each PDF one by one to check the barcode, then manually copy the number and rename it, it is not only inefficient but also prone to typing errors and omissions.
The problem this article aims to solve is clear: use the barcode text from the PDF content to batch rename the PDF files. That is, let the software automatically identify the barcode image from each PDF page and use the recognized barcode text as the new PDF file name. Below, using the screenshot HeSoft Doc Batch Tool as an example, we will demonstrate the complete workflow from importing PDFs, selecting recognition rules, to generating new file names.
Applicable Scenarios: Which PDFs are suitable for batch renaming using barcode text
This method is particularly suitable for PDFs containing clear barcodes within their content. Examples include logistics waybill PDFs, warehouse receiving slips, product certificates, inspection reports, invoice attachments, course materials, registration forms, archive cover pages, and equipment data cards. As long as each PDF contains a recognizable barcode, and the text number corresponding to that barcode is the file name you want to use, you can consider using this method.
For enterprises or teams, file renaming is not simply about beautifying names; it is an important prerequisite for subsequent retrieval, archiving, distribution, and system uploading. Changing temporary file names like 1.pdf to business numbers like 10026877.pdf, 20036655.pdf allows you to identify PDFs in a folder at a glance and makes it easier to correspond them with Excel ledgers, order systems, customer numbers, or archive directories. HeSoft Doc Batch Tool , as office software, has its core value in handling repetitive, mechanical, and error-prone file processing tasks in batches.
Preview of Results: File names without business meaning before processing become barcode numbers after
Before processing, there were 4 PDF files in the folder, named 1.pdf, 2.pdf, 3.pdf, and 4.pdf. These types of names usually only indicate the export order, making it impossible to judge the file content and hindering subsequent searches.

Opening one of the PDFs reveals that the page content includes a barcode, with the corresponding text number displayed below it. For example, the number under the barcode in the screenshot is 20036655, which is exactly the content we want to extract and use for the file name.

After processing, the original 1.pdf, 2.pdf, 3.pdf, and 4.pdf are batch renamed to 10026877.pdf, 20036655.pdf, 20100511.pdf, and 33952100.pdf. The new file names come directly from the barcode text in the PDF content, and the folder list becomes much clearer.

Step One: Enter the File Rename tool and choose to rename PDFs using file content
After opening HeSoft Doc Batch Tool , you can see multiple office file processing categories in the left navigation, such as File Rename, Folder Rename, File Organize, Word Tools, Excel Tools, PDF Tools, etc. This task falls under batch file name processing, so first enter the File Rename category.
In the list of file rename functions, find 'Rename PDF Files Using File Content'. The description for this function in the screenshot is to batch use certain text from the PDF file content as the file name. This 'certain text' can be understood as recognizable text information within the PDF or information obtained through content recognition; in this case, it is the text corresponding to the barcode.

The purpose of selecting this function is to tell the software that the basis for the subsequent renaming is not the original file name, nor a fixed prefix or suffix, but the internal PDF content. This is how you achieve automatic naming of PDF files based on barcode numbers.
Step Two: Add the PDF files to be processed or import from a folder
After entering the 'Rename PDF Files Using File Content' function, the top of the interface shows that the current workflow is divided into 4 steps: Select the records to be processed, Set processing options, Set save location, and Start processing. The first step is to add the pending PDFs to the task list.
In the screenshot, you can see buttons like Add File, Import Files from Folder, Clear, and More. If you are only processing a small number of PDFs, you can click Add File to select them manually; if there are many PDFs in a folder, it is more suitable to use Import Files from Folder, saving time on individual selection. After importing files, the list will display information such as sequence number, name, path, extension, creation time, and modification time to verify correct import.

From the screenshot, 4 records have been imported in this task, all with the pdf extension, located in a test directory on the D drive. After importing, you should focus on two checks: first, whether the number of records matches the number of PDFs to be processed; second, whether any files that should not be processed have been mixed into the list. If extra records are found, you can remove them via the delete icon in the operation column, or use Clear to re-import.
After confirming the files are correct, click Next at the bottom to enter the processing option settings. The expected outcome of this step is that all PDFs to be renamed have appeared in the task list, and the software knows which files to process in the batch.
Step Three: Set the search area and select the first barcode image
The second step is the core of the entire workflow. The software needs to know from which location or type of information within the PDF content to extract the file name. In the screenshot, the search area provides options like First line of text, First barcode image, and Text matched by custom formula. Since the goal of this article is to rename files using the barcode text from the PDF content, you should select First barcode image.

The purpose of selecting the first barcode image is to instruct the software to find the first barcode image in each PDF and recognize the text number corresponding to that barcode. For the type of PDF shown in the screenshot example, the barcode is located at the top right of the page, with the numerical text already displayed below the barcode, so selecting this option matches the actual file structure.
The same page also provides position settings, including Overwrite the entire file name, To the left of the file name, and To the right of the file name. The screenshot shows Overwrite the entire file name is selected, meaning the recognized barcode text will directly replace the original main file name. For example, the original 2.pdf would be changed to 20036655.pdf, rather than appending the number to the left or right of the original file name.
If your business requires retaining the original file name, you can also choose to append it to the left or right according to the position options provided on the interface. However, in this example, the original file names 1.pdf, 2.pdf have no management value themselves, so using Overwrite the entire file name is cleaner and more suitable for archiving by number.
Step Four: Set the save location and start processing
After completing the processing options, continue by clicking Next to enter the save location settings. The screenshot does not detail the specifics of the save location page, so the unshown button names will not be elaborated here. In actual operation, just follow the software interface prompts to complete the save location setting. The purpose of setting the save location is to clarify where the processed PDFs will be output, avoiding confusion with the original files and facilitating verification of results afterward.
Next comes the Start Processing step. After initiating the process, the software will read the PDF content from the task list one by one, identify the text corresponding to the first barcode image, and apply the recognition result to the file name according to the settings. After processing is complete, return to the target folder to check; the file names should have changed from the original sequential names to barcode number names.
In this example, you can see that the 4 PDF files ultimately become 10026877.pdf, 20036655.pdf, 20100511.pdf, and 33952100.pdf, indicating that the batch renaming is complete.
Frequently Asked Questions and Precautions
1. Unclear barcode images can affect recognition results. If the PDF comes from a low-resolution scan, and the barcode is blurry, tilted, missing, or obstructed, the recognition accuracy may decrease. It is recommended to first confirm that the barcode in the PDF is clearly visible.
2. It is best for each PDF to have only one main barcode. This example selected the first barcode image. If a PDF contains multiple barcodes, you need to confirm whether the first barcode is indeed the number used for naming to avoid extracting another code value.
3. Pay attention to special characters in file names. Barcodes are typically numbers or letters, suitable for file names. If the recognition result contains special characters not suitable for file names, you should confirm whether the rules meet system file naming requirements before processing.
4. It is recommended to test with a small number of files first. Before processing hundreds or thousands of PDFs, you can select a few samples for testing to confirm that the recognition area, naming position, and output results meet expectations, before batch importing the complete folder.
5. It is safer to keep the original files before processing. Once batch file operations are executed, the scope of impact is large. It is advisable to back up the original PDFs before formal processing, or save the processed results to a new location for easy comparison and rollback.
Summary: Naming PDFs with barcode text makes batch archiving more efficient
Batch extracting barcode text from PDF content as the file name can significantly reduce the repetitive labor of manually opening, viewing, copying, and renaming. For organizing large volumes of PDF documents, this method not only improves efficiency but also reduces the risk of input errors and file mismatches.
HeSoft Doc Batch Tool integrates PDF recognition and batch renaming into a single workflow through its 'Rename PDF Files Using File Content' function. You only need to import the PDFs, select the first barcode image, and set it to overwrite the entire file name to convert meaningless sequential file names into searchable, archivable numbered file names. If you are organizing PDF documents with barcodes, it is recommended to test a few samples first following the steps in this article, and after confirming correctness, proceed to batch process the entire folder.