When a batch of PDF files need to be uniformly converted to versions such as PDF 1.5, PDF 1.6, PDF 2.0, or PDF/A, opening each file individually and saving it again is not only time-consuming but also prone to omissions. This article uses HeSoft Doc Batch Tool as an example to demonstrate how to batch import multiple PDFs through office software, select a target version, and uniformly output the processed files. The article, combined with before-and-after screenshots, explains how to verify the original PDF version, how to choose the conversion function, how to set version options, and how to verify the results in the document properties of Adobe Acrobat after conversion. It is suitable for users who need to batch process contracts, scanned documents, data packages, archived files, and platform submission files.
In daily office work, PDF files often need to be transferred between different systems, readers, or archiving platforms. Some platforms explicitly require that uploaded PDFs be of a specific version, such as PDF 1.5, PDF 1.6, PDF 1.7, PDF 2.0, or conform to standards like PDF/A, PDF/X, etc.; other older systems may only reliably recognize lower PDF versions. If you only have one or two files, manually opening, checking properties, and re-exporting is acceptable; but when the number of files reaches dozens or hundreds, processing them one by one becomes repetitive labor, wasting time and easily leading to rework due to missed selections or wrong choices.
The problem this article aims to solve is clear: how to batch convert the version numbers of many PDF files to a specified version, for example, uniformly converting original PDF 1.7 files to PDF 2.0, or to PDF 1.5, PDF 1.6, etc., as needed. Below, using the office software " HeSoft Doc Batch Tool " as an example and combined with screenshots, we will explain the complete process from confirming the pre-processing state, selecting the function, batch importing files, setting the target PDF version, to checking the post-processing results.
Applicable Scenarios: When is Batch PDF Version Number Conversion Needed?
Batch converting PDF version numbers is usually not about changing the file content but ensuring the file opens, submits, archives, or is preserved for the long term more stably in a specific environment. Common scenarios include:
- System upload requires a fixed version: Some business systems, archival systems, bidding platforms, and electronic document submission platforms restrict the PDF version. If the file version does not meet the requirements, issues like failure to upload, abnormal previews, or failed verification may occur.
- Compatibility with older readers: Some internal network computers or business terminals still use older PDF readers, and high-version PDFs might not be recognized properly. In this case, PDF 2.0 or PDF 1.7 can be converted to a lower version, such as PDF 1.5, PDF 1.6.
- Standardizing document packages: When companies organize contracts, scanned copies, product materials, reports, and manuals, they often want all PDF versions to be consistent for easier subsequent archiving and delivery.
- Batch correcting third-party files: PDF files downloaded or received from different sources have varying versions. Manual checks are inefficient; using a batch processing tool can complete uniform conversion in one go.
- Archiving or standardization processing: Besides regular PDF 1.0 to PDF 2.0, the screenshots also show options like PDF/A, PDF/X, PDF/UA, ZUGFeRD, suitable for file version processing under different specification requirements.
As can be seen, PDF version conversion is not a single file editing issue but a typical batch office scenario. Using office software designed for batch file processing can reduce repetitive operations, transforming the "open one by one, save as one by one, check one by one" workflow into a one-time configuration and centralized processing task.
Result Preview: What Changes in the PDF Version Before and After Processing?
Before starting the operation, let's look at the processing objects in this example. There are several PDF files in the folder, including services.pdf, The Safety of Mars Sample Return.pdf, the-crowdsourced-guide-to-learning.pdf, Voyager-Grand-Tour.pdf, etc. Processing these types of files individually requires opening and converting each one, which is very time-consuming.
The image below shows the status of one file, services.pdf, viewed in Adobe Acrobat Pro DC under "Document Properties". The "PDF Version" highlighted by the red box is 1.7 (Acrobat 8.x), indicating that the file's version before processing is PDF 1.7. In practice, different files may have inconsistent versions, so if uniform submission or archiving is needed, batch conversion is required.
After processing is complete, open the output file again and check the document properties. You can see that the "PDF Version" of the same services.pdf has changed to 2.0. The screenshot also shows the file is located in the output directory, indicating the converted file has been generated in a new save location, making it easy to distinguish from the original file.
From the comparison before and after processing, the core result of this operation is: the file content is still used as a PDF, but the underlying PDF version number has been converted from the original 1.7 to the target version 2.0. If your requirement is to convert to PDF 1.5, PDF 1.6, or other versions listed in the interface, you can select the corresponding option in that step.
Operation Steps: Using Office Software to Batch Convert PDF to a Specified Version
Step 1: Enter PDF Tools and Select "Convert PDF to Other Version PDF"
After opening HeSoft Doc Batch Tool , select "PDF Tools" in the left-side function category. The main area will display multiple PDF batch processing functions, such as Find and Replace PDF Keywords, Merge Files, Add Watermark, Delete Pages, PDF to Word, PDF to Excel, etc. For this requirement, select "Convert PDF to Other Version PDF". In the screenshot, this function is located in the PDF tools list with the description "Batch convert PDF files to other versions of PDF".
The purpose of this step is to enter the processing workflow specifically for PDF version conversion. Unlike format conversions like PDF to Word or PDF to JPG images, the output of this function is still PDF, only converting the PDF file to another version or standard type. Therefore, it is particularly suitable for meeting compatibility, submission, or archiving requirements without altering the file's primary use.
Step 2: Batch Add the PDF Files to be Processed
After entering the "Convert PDF to Other Version PDF" function, the interface guides you through a wizard-style workflow. The top displays the current processing function name, and the workflow includes "Select Records to Process", "Set Processing Options", "Set Save Location", and "Start Processing". In the first step, clicking "Add File" allows you to manually select multiple PDFs; if files are centralized in the same folder, you can also click "Import Files from Folder".
In the example, 4 PDF files have been imported. The list shows information like sequence number, name, path, extension, creation time, and modification time. It is recommended to first check if the file list is complete, confirming no files are missed or wrongly selected. If some files do not need processing, you can use the delete operation in the list to remove them; if reselection is needed, use the "Clear" button on the interface to clear the current list before importing again.
The expected outcome of this step is: all PDF files needing version number conversion appear in the processing list. For batch office work, this list is very important as it serves as the processing checklist for this task. After confirming everything is correct, click the "Next" button at the bottom to proceed to version settings.
Step 3: Select the Target PDF Version, e.g., PDF 2.0, PDF 1.6, or PDF 1.5
After entering "Set Processing Options", the interface displays the available version types. The screenshot shows multiple version options, including PDF/A-1a, PDF/A-1b, PDF/A-2a, PDF/A-2b, PDF/A-3a, PDF/A-3b, PDF/A-4, PDF/X-1a, PDF/X-3, PDF/UA-1, ZUGFeRD, and regular PDF 1.0, PDF 1.1, PDF 1.2, PDF 1.3, PDF 1.4, PDF 1.5, PDF 1.6, PDF 1.7, PDF 2.0, etc.
In this example, "PDF 2.0" is selected, so the version displayed in the document properties after processing will also change to 2.0. If your goal is compatibility with older systems, select PDF 1.5 or PDF 1.6 according to requirements; for long-term archiving or specific standard needs, choose the corresponding PDF/A, PDF/X, etc., based on platform or organizational requirements.
The key to this step is not to choose the version based on feeling but to adhere to actual submission requirements, system compatibility requirements, or archiving specifications. After selecting the target version, click "Next" to continue setting the save location.
Step 4: Set the Output Location to Avoid Overwriting Original PDFs
The process bar in the screenshot shows the third step as "Set Save Location". Although this set of screenshots does not expand this page, the document properties after processing show that the converted file is located in an output directory, such as C:\Users\hello\Desktop\hesoft-output\. This indicates the software saves the processing results to a specified location, making it easy for users to distinguish from the original files.
When batch converting PDF versions, it is recommended to save the output files to a separate folder, such as "PDF Version Conversion Results", "PDF_2.0 Output", "PDFs for Submission", etc. Doing so has two benefits: first, it preserves the original files, allowing reprocessing if a version selection error occurs; second, the converted files are convenient for unified checking and submission without mixing with the original files.
The expected outcome of this step is: clarity on where the converted PDFs will be saved. After completing the settings, proceed to "Start Processing".
Step 5: Start Batch Processing and Check the Conversion Results
The fourth step in the process bar is "Start Processing". After confirming the file list, target version, and save location are all correct, you can begin the batch conversion. After processing is complete, go to the output folder to view the generated PDF files. To confirm the version conversion was successful, choose any output PDF and open it with Adobe Acrobat or other software that supports viewing document properties, checking the "PDF Version" in "Document Properties".
In this example, services.pdf had a version of 1.7 before processing and changed to 2.0 after processing, indicating a successful conversion. For batch files, it is recommended to spot-check at least a few files from different sources and page counts, especially scanned copies, PDFs with many images, or those with forms or special elements, to confirm they open normally, have the correct page count, and display content without anomalies.
Frequently Asked Questions and Notes
1. Does PDF version conversion change the file content?
The goal of this type of function is to convert the PDF version or standard type. It usually does not convert PDFs to other formats like Word, Excel, or PPT, nor does it edit textual content. However, because different PDF versions support different features, if a file contains special interactive elements, forms, signatures, embedded multimedia, or advanced transparency effects, the display effect and usability should be checked carefully after conversion.
2. Should I choose PDF 1.5, PDF 1.6, or PDF 2.0?
It is recommended to base the choice on actual requirements. If the platform explicitly requires PDF 2.0, choose PDF 2.0; if an older system requires compatibility with a lower version, choose PDF 1.5 or PDF 1.6; if the organizational archive specification requires PDF/A, choose the corresponding PDF/A version. Do not blindly pursue higher versions, as a higher version does not necessarily mean better compatibility.
3. Is a backup necessary before batch processing?
A backup is recommended. Although post-processing screenshots show output files saved to a separate directory, preserving the original files is a safer practice in any batch file processing task. Especially for important PDFs like contracts, invoices, audit materials, and archival documents, make a copy first or designate a separate output directory.
4. Can encrypted or protected PDFs be converted?
If a PDF has an open password, permission restrictions, or special protection, conversion may be limited. Before processing, confirm you have permission to operate on these files and, if necessary, first remove restrictions within legally authorized limits. For files that cannot be opened or read, even if imported successfully into the batch processing list, they may fail during execution.
5. How to quickly verify the results after conversion?
The most direct method is to open the output PDF and check the "PDF Version" in the document properties. In this article's result images, verification was done via Adobe Acrobat's document properties: it showed PDF version 1.7 before processing and PDF version 2.0 after processing. For a large number of files, start with spot checks, then perform a final check according to submission requirements.
Summary: Batch Converting PDF Versions Significantly Reduces Repetitive Labor
When needing to uniformly convert a large number of PDFs to PDF 1.5, PDF 1.6, PDF 2.0, or other standard versions, manual one-by-one processing is not only inefficient but also prone to errors. With office software like HeSoft Doc Batch Tool , you can import multiple PDFs at once, uniformly select the target version, set the output directory, and process them centrally, greatly reducing repetitive operations.
If you are repeatedly reworking files due to PDF versions not meeting platform requirements, unstable file compatibility, or inconsistent archiving specifications, follow the steps in this article to first prepare a batch of test files, select a suitable target version for conversion, and verify the results through document properties. After confirming the process is stable, apply it to formal file batch processing for greater efficiency and reliability.