Many office scenarios require consistent PDF file versions, for example, archiving, uploading to systems, document delivery, or compatibility checks. This article explains how to use HeSoft Doc Batch Tool to batch convert multiple PDFs in a folder to a specified version. The tutorial uses converting PDF 1.7 to PDF 2.0 as an example, showing the file list before processing, version information before processing, the steps for adding files and selecting the version in the software, and the verification method after the PDF version changes to 2.0 after processing.
When organizing PDF materials, many people encounter a detail issue: file extensions are all PDF, but the PDF version numbers in document properties are not the same. Some files may be PDF 1.4, while others may be PDF 1.7; when materials need to be submitted to archive systems, project platforms, or customer-specified environments, the recipient may require a uniform standard like PDF 1.5, PDF 1.6, or PDF 2.0. At this point, manually opening files one by one to check versions and then converting them individually is not only time-consuming but also prone to missing files.
This article will focus on "batch converting PDF version numbers", introducing how to use HeSoft Doc Batch Tool to convert many PDF files to a target version in one go. In the example, the pre-processing PDF version is 1.7 (Acrobat 8.x), and after processing, it becomes PDF 2.0. The article will explain the operational purpose, expected results, and precautions for each step with screenshots, helping you quickly unify PDF versions in practical office work.
Applicable Scenarios: What Problems Can Batch Unifying PDF Version Numbers Solve
PDF version numbers usually do not display directly in the file explorer; users need to open a PDF reader or editor to view them in the document properties. Precisely because it is inconspicuous, it is easy to encounter version inconsistency problems when delivering large quantities of PDF files.
The following scenarios are especially suitable for using the batch convert PDF version feature:
- Unified Project Material Delivery: PDFs submitted by various departments come from different sources and generation tools, resulting in inconsistent version numbers. Unifying versions before delivery can reduce issues during the acceptance phase.
- Archive Filing Standardization: Electronic archive management often emphasizes format specifications. Unifying versions for a batch of contracts, reports, drawing instructions, and scanned materials facilitates long-term preservation and subsequent retrieval.
- System Upload Compatibility: Some systems have requirements for PDF versions, structures, or standards when parsing PDFs. Converting to a specified PDF version in advance can reduce the probability of upload failures or abnormal previews.
- Batch Organizing External Files: PDF files collected from clients, suppliers, websites, or historical projects may be generated by different software, leading to version inconsistency. Batch processing is more reliable than manual adjustment.
- Office Process Automation: When PDF version conversion becomes part of a fixed workflow, using batch processing tools can reduce repetitive clicks, saving time for review and content confirmation.
HeSoft Doc Batch Tool is a batch tool designed for office file processing, with an interface containing categories such as PDF tools, Word tools, Excel tools, and PowerPoint tools. Its value lies not in single file operations but in centrally executing numerous repetitive file processing tasks, such as batch converting PDF versions, batch converting formats, and batch organizing documents.
Effect Preview: Batch Converting from PDF 1.7 to PDF 2.0
Before Processing: Multiple Pending PDFs in the Folder
From the pre-processing screenshot, we can see that multiple PDF files are placed in the folder, including services.pdf, The Safety of Mars Sample Return.pdf, the-crowdsourced-guide-to-learning.pdf, and Voyager-Grand-Tour.pdf. Although there are only 4 files in the example, the actual number could be dozens or even more in practice. The advantage of batch processing is exactly that: the more files there are, the more obvious the time savings.

Pre-processing Version: Example File is PDF 1.7
Opening services.pdf and checking "Document Properties" shows the current PDF version is displayed as 1.7 (Acrobat 8.x). If the current task requires output as PDF 2.0, then this file needs conversion. The same situation may exist for other files, making it more suitable to import them all into the software for batch processing.

Post-processing Version: Output File Has Been Changed to PDF 2.0
After the batch conversion is complete, checking services.pdf in the output directory again shows the PDF version in the document properties as 2.0, indicating that the file has been converted according to the target version. The screenshot also shows that the file location has changed to the output directory, making it easy to distinguish between the original and processed files.

Through this before-and-after comparison, the core problem solved by this method is clear: a batch of PDF files can be uniformly converted to a specified PDF version without needing to manually "Save As" each one individually.
Operational Steps: Batch Convert Multiple PDFs to PDF 1.5, 1.6, or 2.0
Step 1: Open the Software and Enter the PDF Version Conversion Function
After launching HeSoft Doc Batch Tool , select "PDF Tools" in the left navigation bar. Find "Convert PDF to Other Versions of PDF" in the function card list. The screenshot highlights this function, indicating it is the entry point for batch converting PDF files to other versions.

The purpose of this step is to enter the dedicated process for PDF version number conversion. Unlike functions such as PDF to Word, PDF to Excel, or adding watermarks to PDFs, "Convert PDF to Other Versions of PDF" still outputs PDF files, only the target version changes.
After entering the function, the page top displays the current task name and shows the processing flow in a step bar format, including selecting records to process, setting processing options, setting the save location, and starting processing. For users unfamiliar with batch tools, this wizard-style flow can reduce operational difficulty.
Step 2: Add PDF Files or Import from a Folder
On the "Select records to process" page, clicking "Add Files" allows selecting single or multiple PDFs; if all PDFs are gathered in one folder, clicking "Import Files from Folder" is more convenient. The screenshot shows 4 records have been successfully added, with file names, paths, and extensions displayed in the list.

After adding files, three points need checking:
- Is the file count correct: The bottom summary shows the record count is 4, indicating the current task will process 4 PDFs.
- Are the file paths correct: The paths in the list show these files are from the D:\test directory, making it easy to confirm if the wrong folder was selected.
- Is the extension pdf: The extension column shows pdf, indicating the imported files are PDF files.
If there are files in the list that do not need conversion, you can remove them using the delete icon in the operation column; if you want to re-import, you can use "Clear" and then select again. After confirming the file list is correct, click "Next" at the bottom of the page.
Step 3: Select the Target Version from the Version List
After entering "Set processing options", the interface will display a "Version" area and list multiple optional target versions. The screenshot shows options like PDF/A-1a, PDF/A-1b, PDF/A-2a, PDF/A-2b, PDF/A-3a, PDF/A-3b, PDF/X related versions, PDF 1.0 to PDF 1.7, and PDF 2.0.

In the example, PDF 2.0 is selected, so the output file version will become PDF 2.0 after processing. If your work requirements differ, you can select the corresponding version:
- If you need to unify PDFs to an older compatible version, you can choose PDF 1.4, PDF 1.5, or PDF 1.6 as required.
- If you need to maintain a newer PDF standard, you can choose PDF 1.7 or PDF 2.0.
- If the recipient explicitly states a PDF version number, you should strictly select according to their requirements; it is not advisable to choose arbitrarily based on experience.
After selecting the target version, click "Next". The expected result of this step is: the software now knows which version to uniformly convert all the added PDFs to.
Step 4: Set the Output Location, Keep the Original Files as Backup
Next, enter "Set Save Location". Although the screenshot in this article doesn't show the specific controls for this page, the software's step bar indicates that setting the save location is an independent step in the batch processing flow. In the post-processing effect image, the file location is shown under the output directory, also indicating that the converted PDFs will be saved to a specified location.
It is recommended not to mix output files directly into the original file directory, especially when batch processing a large number of files. A safer approach is to create a new output folder, such as "PDF Version 2.0 Results", "PDF Version Conversion Output", or create a result directory based on the project name. This way, even if the version selection is later found to be inappropriate, you can return to the original files to reprocess.
For formal office materials, keeping the original files is very important. Although batch conversion can significantly improve efficiency, any batch operation should strive to ensure "original files are traceable, result files are checkable".
Step 5: Start Batch Processing and Verify the PDF Version
After completing the save location settings, proceed to the "Start processing" step and execute the task. After the software finishes processing, open the output directory, select one of the PDF files, and view its document properties. In the article's example, the processed services.pdf shows the PDF version as 2.0, indicating the conversion met expectations.
If you are processing a large number of files, it is recommended not just to check one file. You can spot-check PDFs from different sources, with different page counts, and different file sizes, confirming they all open normally, page counts are not abnormal, document content displays correctly, and the PDF version number meets the target requirement.
Common Questions and Precautions
1. Where can I view the PDF version number?
You can use a PDF reader or editor to open the file and check it in "Document Properties". The Adobe Acrobat Pro DC properties window screenshot in this article displays the PDF version field, showing 1.7 (Acrobat 8.x) before processing and 2.0 after.
2. Is batch converting PDF versions suitable for all PDFs?
Most ordinary PDF materials can be processed following this flow, but internal structures of different PDFs may vary, such as scanned copies, files with forms, files containing annotations, and files generated by special software. Spot-checking is recommended after batch conversion, especially for important contracts, vouchers, archived files, and materials with strict format requirements.
3. Is PDF 2.0 definitely better than PDF 1.6?
Not necessarily. PDF version selection should be based on actual requirements. Newer versions may include new standard capabilities, but older systems may not support them; older versions may be compatible with some legacy systems but may not meet new project requirements. Therefore, if the system or client requires PDF 1.6, select PDF 1.6; choose PDF 2.0 when that is required.
4. Will the file names change?
As seen in the post-processing effect, the example file is still services.pdf, indicating users can continue to identify the original file in the output directory. In actual use, it is recommended to indicate the target version in the output folder name for easy distinction.
5. What should I pay attention to when batch importing from a folder?
Before using "Import Files from Folder", it is recommended to organize the pending PDFs first, moving files that don't need conversion out of that directory to avoid accidental processing. After importing, also check the record count, file names, and paths in the list, confirming correctness before proceeding to the next step.
6. Is a backup needed before conversion?
A backup is recommended, or at least output the conversion results to a new directory. The efficiency of batch file processing is high, but it also means one operation can affect multiple files. Keeping the original files allows you to quickly recover if the version selection is wrong, the results don't meet requirements, or re-conversion is needed.
Summary: Leave PDF Version Conversion to Batch Office Tools
The core value of batch converting PDF version numbers is transforming originally repetitive, inefficient, and easily overlooked manual operations into a one-time processing flow. Through HeSoft Doc Batch Tool , users can select "Convert PDF to Other Versions of PDF" in the PDF tools, batch add files or import a folder, then choose a target version like PDF 1.5, PDF 1.6, PDF 1.7, or PDF 2.0, finally set the save location and start processing.
If you are organizing a batch of PDF materials that need a unified standard, it is recommended to first select a small number of files to test the target version, confirm the processing results meet system or recipient requirements, and then import all PDFs for batch conversion. This ensures file standardization while significantly saving office time, making PDF version unification work more controllable and efficient.