This article explains how to use HeSoft Doc Batch Tool to batch convert multiple OFD files into JPG images based on a specified page range. In the example, 1.ofd, 2.ofd, 3.ofd, and 4.ofd are uniformly exported with the first 2 pages and set to a 300 PPI image pixel density, suitable for scenarios such as electronic invoices, electronic official documents, and archival materials that only require extracting the first page or a few preview pages, helping users reduce the repetitive operations of opening, screenshotting, and saving as images one by one.
In daily office work, OFD files frequently appear in scenarios such as electronic invoices, electronic vouchers, electronic official documents, archive collection, and reimbursement material organization. Often, we do not need to convert the entire OFD file into images but only want to export the first page, first two pages, or specific pages of each file to JPG for system uploading, material preview, approval flow display, or archiving. If you manually open each OFD file and take screenshots or export page by page, it is not only time-consuming but also prone to missing files or pages, and it is difficult to maintain uniform image clarity.
This article uses HeSoft Doc Batch Tool as an example to demonstrate how to batch convert partial pages of multiple OFD files into JPG images. In the example, there are 4 OFD files, and the operational goal is to uniformly extract the first 2 pages of each OFD file and output them as JPG images at a resolution of 300 PPI. This approach allows repetitive file conversion tasks to be handed over to office software for batch processing, reducing manual operations and increasing file processing efficiency.
Applicable Scenarios: When to Batch Convert Partial Pages of OFD to JPG
OFD is a common fixed-layout document format in China, featuring fixed layouts suitable for archiving. However, in many business systems or collaboration scenarios, image formats are easier to preview and upload. Therefore, batch converting OFD to JPG images is a highly practical office need. Especially when the number of files is large, using a batch processing tool can save significant time.
The following scenarios are well-suited for the method described in this article:
- Batch preview of electronic invoices: Some reimbursement or financial systems only require the first page image of an invoice, eliminating the need to convert the entire OFD file.
- Abstract display of electronic official documents: Only the first few pages of each OFD need to be generated as images, allowing for quick viewing of key information such as titles, document numbers, and the beginning of the main text.
- Batch archiving of archival materials: An archive system might require uploading JPG preview images, and batch conversion ensures consistent output formatting.
- Image uploading for business systems: Some systems do not support direct OFD uploads but do support JPG, JPEG, and other image formats, in which case conversion can be done in batch first.
- Reducing manual screenshots: Avoids repetitive actions like manually opening files, zooming pages, taking screenshots, naming, and saving.
Compared to single file conversion, the core value of batch conversion lies in adding multiple OFD files at once, uniformly setting the page range, image resolution, and save location, and then letting the software automatically complete the processing. For office tasks involving dozens or hundreds of files, the efficiency improvement is significant.
Result Preview: Multiple OFD Files Before Processing, JPG Image Results After
Before Processing: OFD Files to be Converted
From the pre-processing screenshot, it can be seen that the current folder contains 4 OFD files to be processed, named 1.ofd, 2.ofd, 3.ofd, and 4.ofd. These types of files generally require an OFD-compatible reader to open. If you need to turn some of their pages into images, manual handling would be quite cumbersome.
The goal of this article is not to convert all pages of each OFD file but only partial pages of each OFD file. The example selects the "first few pages" and sets the range to 2, meaning the first 2 pages of each OFD file will be converted to JPG images.
After Processing: Each OFD File Gets Corresponding JPG Image Results
After processing, you can see that corresponding result folders or content are generated in the output location. In the example, the results correspond to the original files via names like 1, 2, 3, and 4. The right side of the screenshot shows the JPG identifier, indicating that the OFD pages have been converted into image format and can be directly used for previewing, uploading, sending, or archiving.
The advantage of this output method is clearer results: the number of original files is reflected in the conversion results, which are distinguishable by file, making verification and subsequent organization easier. Especially when processing materials like invoices, contracts, and vouchers, generating corresponding image results per original file can reduce confusion.
Steps: Batch Converting the First Few Pages of OFD Files to JPG Images
Step 1: Open the office software and enter the "OFD to JPG" function
After opening HeSoft Doc Batch Tool , you can see multiple tool categories on the left, such as File Name, Folder Name, File Organization, Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, Image Tools, etc. This article uses a function related to OFD format conversion, which is located on the "More Tools" page in the screenshot.
Find and click "OFD to JPG" in the function list. The description for this function is "Batch convert OFD files to JPG format images," which aligns with the goal of this article. Note that although the function name mentions OFD to JPG, the subsequent processing options allow you to set a page range, enabling processing of all pages or just partial pages.
The purpose of selecting this function is to let the software enter the dedicated OFD image conversion flow. Compared to generic screenshot methods, using a conversion tool provides more stable page image output and supports batch file addition, making it suitable for repetitive file processing in office scenarios.
Step 2: Add multiple OFD files and confirm the pending processing records
After entering the "OFD to JPG" page, the top of the interface provides two entry points: "Add Files" and "Import Files from Folder". For a small number of files, you can click "Add Files" to manually select them; if a large number of OFD files are already centrally stored in a folder, you can use "Import Files from Folder" for a one-time import, which is more convenient.
The screenshot shows that 4 records have been imported: 1.ofd, 2.ofd, 3.ofd, and 4.ofd. The table displays information such as serial number, name, path, extension, creation time, and modification time, allowing users to verify whether the files are added correctly. There is also a delete icon on the right to remove unwanted files. The bottom of the interface shows a record count of 4, indicating that this batch task will process 4 OFD files.
The key point of this step is to confirm the "pending file list." If unwanted files appear in the list, they should be removed; if any files were missed, they should be added. Verification before batch processing is crucial because the subsequent software will execute the conversion task uniformly based on the records in the list.
Step 3: Set the processing range to convert only the first few pages
After confirming the file list is correct, click "Next" at the bottom of the page to enter the processing options settings interface. This is the key step for "converting only partial pages."
In the "Processing Range" area, you can see multiple options, including "All Pages", "First Few Pages", "Last Few Pages", "Odd Pages", "Even Pages", and "Custom". The example selects "First Few Pages" and fills in 2 in the "Range" input box below. This setting means that for each imported OFD file, only the first 2 pages will be extracted for JPG conversion.
This option is ideal for office scenarios that only require the first page or first few pages of content. For example, the main information of an electronic invoice is usually concentrated on the first page; some material summaries only need to show the cover and the first page of content; approval previews might also only require the first 1 to 2 pages. Using the "First Few Pages" setting avoids outputting excessive useless images, reduces storage consumption, and makes the result files easier to manage.
Step 4: Set the image pixel density to control JPG clarity
On the same processing options page, you can see the "Image Pixel Density (PPI)" setting item. The example fills in 300. The PPI value affects the clarity and file size of the output image. Generally, a higher value results in a clearer image but potentially a larger file; a lower value results in a smaller image size, but the details might be less clear.
For documents like invoices, vouchers, official documents, and contracts where text details need to be preserved, 300 PPI is a commonly used clarity setting that balances readability and file size. If only used for simple previews, you can choose a lower value based on actual circumstances; if used for printing or archiving, it is recommended to use a higher clarity setting.
The screenshot also shows an option to "Stitch multiple pages into one long image," which is currently disabled. When disabled, it typically means each page will be output as an independent image, which is more suitable for page-by-page viewing and management. If you later need to combine multiple page contents into one long image, you can enable it according to actual needs.
Step 5: Continue to the next step, set the save location, and start processing
After completing the processing options settings, click "Next" at the bottom. From the interface flow, you can see that the software's batch processing is divided into stages: select records, set processing options, set save location, and start processing. Therefore, after completing the page range and PPI settings, you need to proceed to set the save location for the output files.
It is recommended to choose a separate new folder for the save location, such as "Conversion Results" or "JPG Output," to avoid mixing with the original OFD files and to facilitate subsequent verification. After setting the save location, enter the start processing step and let the software execute the conversion in batch.
Once processing is complete, open the output directory to view the JPG image results generated for each OFD file. As seen in the post-processing screenshot, the conversion results have been generated correspondingly by file, ready for further uploading, sending, or archiving.
FAQ and Notes
1. How to convert only the first page of an OFD file?
Select "First Few Pages" in the processing range and set the range to 1. This will convert only the first page of each OFD file. This setting is suitable for scenarios involving the first page of electronic invoices, material covers, and voucher first pages.
2. What if I want to convert the last few pages?
You can select "Last Few Pages" in the processing range and then fill in the number of pages to extract. For example, filling in 2 means converting the last 2 pages of each OFD file. This setting is suitable for files where you are only focusing on seal pages, attachment pages, or concluding statements.
3. Is 300 PPI mandatory?
No, it is not. 300 PPI is the setting in the example and is generally suitable for clear output of text-based documents. In actual use, it can be adjusted according to the purpose of the image. If the image is mainly for web preview, it can be reduced appropriately; if you need to ensure clarity of details like text, seals, or QR codes, a higher PPI can be used.
4. Should I back up the original files before batch conversion?
From the screenshot process, this function converts OFD to JPG images, typically generating new image results without directly modifying the original OFDs. However, when processing important official documents, bills, or archival materials, it is still advisable to retain the original files and save the output results in a separate directory for traceability.
5. Why output results separately by file?
When batch processing multiple OFDs, generating results corresponding to the original files reduces confusion. For instance, the image results for 1.ofd are placed in the corresponding 1 folder or result group, and those for 2.ofd in the corresponding 2 folder or group, making subsequent verification more intuitive.
Summary: Using Batch Processing to Reduce Repetitive Work in OFD to JPG Conversion
Converting partial pages of OFD files into JPG images is a high-frequency requirement in many office workflows. Manual processing is not only slow but also prone to issues like inconsistent page counts, chaotic file naming, and non-uniform image clarity. Using HeSoft Doc Batch Tool , you can add multiple OFD files at once, uniformly set parameters like "First Few Pages," image pixel density, and save location, and then batch output the JPG image results.
If you frequently need to process electronic invoices, electronic official documents, voucher archives, or other OFD files, it is recommended to apply the method described in this article to your daily work. First, centrally organize the OFD files to be converted, then use the "OFD to JPG" function to batch extract the required pages, which can significantly reduce repetitive operations and make the processes of file conversion, preview, and archiving more efficient.