This article is intended for office users who need to unify PDF version numbers. It introduces how to use HeSoft Doc Batch Tool to batch convert multiple PDF files to a specified version, such as PDF 1.5, PDF 1.6, PDF 1.7, or PDF 2.0. The article combines before-and-after processing screenshots and software operation screenshots to illustrate the complete workflow, from accessing the PDF tool, adding files, selecting the target version, setting the save location, and starting the process. It is suitable for scenarios involving document archiving, system compatibility, material submission, and batch standardization.
In daily office work, PDF files may all appear to have the ".pdf" format, but their internal version numbers can be inconsistent. Some files are PDF 1.4, others are PDF 1.7, and some newly generated files might need to be standardized to PDF 2.0. When it comes to corporate archiving, system uploads, electronic data exchange, or third-party platform verification, inconsistent PDF versions can lead to differences in opening compatibility, parsing rules, or acceptance criteria. If you only have one file, you can manually open the software and save it as a copy; but if a folder contains dozens or hundreds of PDFs, checking and converting them one by one would be very time-consuming.
The problem this article aims to solve is: how to batch convert the version number of many PDF files to a specified version, such as PDF 1.5, PDF 1.6, PDF 1.7, or PDF 2.0. Below, using " HeSoft Doc Batch Tool " as an example, we demonstrate using the batch PDF processing capability in office software to uniformly convert multiple PDFs to the PDF 2.0 version. This process is equally applicable for batch conversion needs when selecting other available version options.
Applicable Scenarios: When is Batch PDF Version Number Conversion Needed?
The PDF version number is typically displayed in the document properties. It is not part of the file name, but rather a piece of information within the PDF file's internal structural standard. Many users only notice this item when encountering system upload errors, when a client requests a specific version, or when compatibility issues arise when opening the file with different readers.
Common applicable scenarios include:
- Standardization before data archiving: Corporate contracts, reports, manuals, scans, and other PDFs come from different sources, and their version numbers may be inconsistent. Unifying them to a specific PDF version before archiving aids subsequent management.
- Platform uploads with version requirements: Some business systems, archive systems, and review systems may require a specific PDF version, necessitating the conversion of files to a specified version like PDF 1.5, PDF 1.6, PDF 1.7, or PDF 2.0.
- Cross-software opening compatibility: Different PDF readers, editors, or office systems have varying degrees of support for PDF versions. Batch adjusting the versions can reduce reading problems caused by version differences.
- Batch processing historical files: Old project files, historical scan files, and externally collected PDFs are often numerous. Saving them as copies one by one is inefficient, making it suitable to use a batch processing tool to complete the task in one go.
- Normalization before submitting materials: When bid documents, project materials, thesis appendices, training materials, etc., need to be submitted in a unified format, you can batch convert their versions first, then perform a unified check.
HeSoft Doc Batch Tool belongs to office file batch processing software, and its core value is reducing repetitive labor. For standardized operations like PDF version conversion, it can consolidate the repetitive process of "open file—choose Save As—check version" into a single batch task.
Effect Preview: Comparison of PDF Versions Before and After Processing
Before Processing: Multiple PDF file versions may not meet requirements
From the pre-processing screenshot, it can be seen that the folder contains multiple PDF files, such as services.pdf, The Safety of Mars Sample Return.pdf, the-crowdsourced-guide-to-learning.pdf, Voyager-Grand-Tour.pdf, etc. These files all need to enter the same batch conversion process, rather than being manually operated on one by one.

Further opening one of them, services.pdf, in Adobe Acrobat Pro DC and checking the "Document Properties," you can see that the file's current PDF version is 1.7 (Acrobat 8.x). This indicates that it was not a PDF 2.0 version before conversion. If the business requirement is to standardize to PDF 2.0, a version conversion is necessary.

After Processing: PDF version has changed to 2.0
After the batch processing is complete, viewing the document properties of the output file again shows that the PDF version is now displayed as 2.0. At the same time, the location in the properties window points to the output directory, indicating that the processed file has been saved to a new location, making it easy to distinguish from the original file.

This result demonstrates: through batch conversion, the file's PDF version number has been updated according to the set target. For situations requiring conversion to PDF 1.5, PDF 1.6, or PDF 1.7, the corresponding option can also be selected during the version selection step.
Operation Steps: Using Office Software to Batch Convert PDFs to a Specified Version
Step One: Enter the PDF tools and select "Convert PDF to Other PDF Versions"
After opening HeSoft Doc Batch Tool , select "PDF Tools" from the tool categories on the left. The software's main interface will display multiple PDF-related functions, such as PDF Add Watermark, PDF Delete Pages, PDF to Word, PDF to Excel, etc. The function you need to select here is "Convert PDF to Other PDF Versions".
In the screenshot, this function is located in the PDF tools list, and its description is for batch converting PDF files to other PDF versions. The purpose of selecting this function is to enter the batch process specifically designed for modifying PDF version numbers.

Upon entering this function, the software breaks down the entire task into several steps: select the records to process, set processing options, set the save location, and start processing. This allows the user to complete the task step-by-step using a wizard, without needing to search back and forth between multiple menus.
Step Two: Add the PDF files that need version conversion
After entering the "Convert PDF to Other PDF Versions" function, the first step is to select the records to process. At the top right of the interface, you can see the "Add Files" button and also the "Import Files from Folder" button. If you only need to process a few specific files, you can click "Add Files"; if there are a large number of PDFs in a folder, it's more suitable to use "Import Files from Folder".

The screenshot shows 4 PDF files have been imported, and the list displays information like sequence number, name, path, extension, creation time, and modification time. The user can confirm through this list whether the files were added correctly. If a file is found to be unnecessary for processing, it can be removed using the delete icon in the operation column on the right; if reselection is needed, the "Clear" button on the interface can be used to add files again.
The expected result of this step is: all PDF files to be batch version-converted appear in the list, and the record count matches the actual number of files to be processed. After confirming everything is correct, click "Next" at the bottom to enter the version settings.
Step Three: Select the target PDF version, for example, PDF 2.0
The second step is to set the processing options. The interface lists multiple optional versions in the form of radio buttons, including PDF/A related versions, PDF/X related versions, PDF 1.0, PDF 1.1, PDF 1.2, PDF 1.3, PDF 1.4, PDF 1.5, PDF 1.6, PDF 1.7, and PDF 2.0, etc. Users should select the target version based on the actual submission requirements or compatibility needs.

The screenshot shows that PDF 2.0 is selected. If your need is to "batch convert PDFs to version 1.5", select PDF 1.5 here; if you need to "batch convert PDFs to version 1.6", select PDF 1.6. The software interface provides version options, and the user only needs to select one target version, and the subsequent batch process will convert the added files according to this version.
When selecting a version, it is recommended to first confirm the requirements of the recipient or system. A higher PDF version number is not necessarily better for all scenarios. If the counterparty's system explicitly requires PDF 1.5 or PDF 1.6, do not directly select PDF 2.0; if the goal is to use a newer standard and the reading environment supports it, then you can choose PDF 2.0.
Step Four: Set the save location to avoid overwriting the original PDFs
After completing the version selection, click "Next" to enter the save location settings. Although the screenshot doesn't show the specific details of this page, the process navigation indicates that the software includes a "Set Save Location" step; and the post-processing result image also shows the output files were saved to a new output directory. The purpose of setting the save location is to centrally save the converted PDF files for easy checking and delivery, while avoiding direct impact on the original files.
In actual office processing, it is recommended to save the output files to a new folder, such as "PDF Version Conversion Results," "PDF 2.0 Output Files," or a project-specific output directory. This has two benefits: first, the original files are retained as a backup; second, after processing, it is easier to batch open files for spot checks or send them uniformly.
Step Five: Start processing and check the results
After setting the save location, proceed to the final "Start Processing" step to execute the batch conversion task. Once processing is complete, open the output directory, select one of the PDF files to view its properties, and confirm whether the PDF version has been changed to the target version. In the example of this article, the converted services.pdf shows PDF version 2.0 in its document properties, indicating a successful conversion.
If the number of processed files is large, it's advisable to spot-check at least a few PDFs from different sources and with different page counts to confirm they open normally, the page count is correct, the content displays properly, and the version number meets the requirements. For formal archiving or submission scenarios, this spot-checking step reduces the delivery risk after batch processing.
Frequently Asked Questions and Notes
1. Does PDF version conversion alter the file content?
The main goal of PDF version conversion is to adjust the version standard of the PDF file. Generally, users care about whether the converted file can be opened normally, whether the page content remains consistent, and whether the version number meets the requirements. Since different PDFs may contain elements like fonts, images, forms, and annotations, spot-checking is recommended after processing, especially for contracts, receipts, scanned documents, and files with complex formatting.
2. Should I choose PDF 1.5, PDF 1.6, or PDF 2.0?
The choice of version should depend on the usage scenario. If the receiving system explicitly requires PDF 1.5, choose PDF 1.5; if it requires PDF 1.6 or PDF 1.7, choose the corresponding version; if you wish to convert to a newer standard and the reading environment supports PDF 2.0, you can select PDF 2.0. Do not judge suitability based solely on the version number's level; the key is to meet the requirements of the business system and the recipient.
3. Why is it recommended to output to a new folder?
The biggest feature of batch processing is handling many files at once. If you directly overwrite the original files and later discover that the selected version didn't meet the requirements, recovery would be troublesome. Saving to a new directory preserves the original PDFs and facilitates a review of the conversion results. The post-processing screenshot shows the file location is in an output directory, which is a recommended habit in batch office processing.
4. Can I import an entire folder at once?
As seen from the operation interface, the software provides an "Import Files from Folder" button, suitable for processing a large number of PDF files within a folder. Compared to clicking "Add Files" one by one, importing a folder is more suitable for batch conversion tasks and can significantly reduce the time spent on repeated file selection.
5. Do I need to close PDF readers before conversion?
Before batch processing files, it is recommended to close any readers or editors that are currently opening these PDFs to avoid processing failures caused by files being occupied. Especially in Windows environments, if a PDF is being locked by another program, the batch process may not be able to write the output file normally.
Summary: Standardizing PDF Versions through Batch Processing to Reduce Repetitive Operations
Batch converting PDF files to a specified version is a typical office efficiency scenario. In the past, you had to open PDFs one by one, check document properties, and save as or convert. Now, you can complete it in a single workflow using HeSoft Doc Batch Tool : enter the PDF tools, select "Convert PDF to Other PDF Versions," add files or import a folder, select the target version, set the save location, and then start processing.
For users who need to uniformly convert a large number of PDFs to PDF 1.5, PDF 1.6, PDF 1.7, or PDF 2.0, this batch processing method can significantly reduce repetitive labor and also lower the probability of files being overlooked due to manual operations. It is recommended to test the target version with a small number of files before formal submission, and only proceed with batch processing all PDFs after confirming they meet the requirements, saving the results to an independent output folder.