When there are many OFD files, each containing multiple pages, converting them to images one by one can be very inefficient. This article uses HeSoft Doc Batch Tool as an example to explain how to use the "Convert OFD to JPG Images" feature to batch import multiple OFD files, set the page processing range and image pixel density (PPI), and enable "Merge multiple pages into one long image," ultimately outputting each OFD file as a long JPG image that is easy to view and upload, suitable for invoices, receipts, vouchers, and office archiving scenarios.
Many office workers encounter similar issues when handling OFD files: the file is in OFD format, but the recipient requires an image; an OFD file contains multiple pages, but the upload system doesn't want them split into multiple images; there are a large number of files, and manual conversion is both time-consuming and prone to omissions. OFD is already very common, especially in scenarios like electronic invoices, electronic vouchers, financial notes, tax documents, and government-downloaded files, but JPG images remain a more universal, easier-to-preview, and easier-to-transfer format.
The problem this article aims to solve is: how to batch-generate JPG long images from multiple OFD files. That means not just converting OFD to ordinary images, but stitching specified multiple pages from each OFD file into one very long JPG image. The result is fewer files, continuous content, easier viewing, and better suitability for uploading to business systems that only support images.
The following demonstration uses the office software " HeSoft Doc Batch Tool " shown in the screenshots. It is an office tool oriented towards batch document processing, with its core value lying in centralizing repetitive file conversion, organization, and renaming operations. For a high-frequency but tedious task like converting OFD to JPG long images, a batch processing tool is more stable and time-saving than manual operation.
Applicable Scenarios: Why Convert OFD into a Single JPG Long Image
OFD itself is suitable for electronic document storage and layout fidelity, but in actual office workflow, not everyone can easily open OFD files. Many systems, platforms, chat tools, email bodies, or online forms have better compatibility with JPG images. Therefore, converting OFD to images is a common requirement.
And "converting to a single long image" further solves the problem of scattered multi-page content. For example, an OFD invoice or voucher with 2 pages, if output as 2 separate images, requires an extra step for subsequent uploading, naming, and verification; if combined into one long image, it can be viewed continuously from top to bottom, enhancing information integrity.
Typical use cases include:
- Batch electronic invoice processing: Convert multiple OFD invoice files to JPG for easier submission for reimbursement or archiving.
- Merged multi-page voucher display: Stitch multiple pages of the same OFD into one long image to avoid page scattering.
- Material upload platforms: Some platforms only support image formats like jpg and jpeg, requiring OFD conversion first.
- Mobile viewing: Long images can be viewed directly by scrolling on a phone without needing an additional OFD reader.
- Batch archiving and backup: Once OFD files are converted to images, thumbnail previews are more intuitive, facilitating later retrieval.
If you only need to convert one or two files, manual processing might be barely manageable; but for dozens of OFD files, especially with multiple pages each, batch operation is essential. It not only saves time but also ensures consistency in output format, page range, and clarity.
Result Preview: Changes Before and After OFD File Conversion
Before processing, the folder contains multiple OFD files. The screenshot shows four files: 1.ofd, 2.ofd, 3.ofd, and 4.ofd, all source files pending processing. At this point, if sent directly to others, recipients would need software capable of opening OFD; if uploading to a system supporting only images, format conversion would be necessary first.
After processing, corresponding JPG images appear in the folder, such as 1.jpg, 2.jpg, 3.jpg, 4.jpg. The screenshot clearly shows that 1.jpg is a vertically long image, indicating multi-page content has been stitched into one picture. Other JPG files are also generated matching the source filenames, facilitating one-to-one correspondence with the original OFDs.
This result is ideal for office delivery: users don't need to open files page by page, nor manually merge multiple images. After conversion, each OFD corresponds to one result file, making viewing, transferring, and uploading much simpler.
Operation Steps: From Importing OFD to Outputting JPG Long Images
Following the order of the software interface screenshots, a detailed explanation is provided for each step and the expected result upon completion.
Step 1: Find the OFD to JPG Function in the Tool List
After opening HeSoft Doc Batch Tool , first look at the left navigation bar. The interface offers several office processing categories, such as Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, Text Tools, Image Tools, and "More Tools," etc. In the screenshot, "More Tools" is currently selected.
In the function cards of the main area, find "2. Convert OFD to JPG Image". The description below the card reads "Batch convert OFD files to JPG format images". This indicates the function's purpose is very clear: batch converting OFD files to JPG images.
Clicking this function leads to the dedicated OFD conversion task page. Note here to avoid selecting "Convert OFD to PDF", as the goal of this article is not to generate PDF but JPG long images.
Step 2: Import the OFD Files for Batch Conversion
After entering the "Convert OFD to JPG Image" page, you can see two common entry points at the top: "Add Files" and "Import Files from Folder". If files are scattered in different locations, use "Add Files" to select them individually; if files are already placed in the same directory, using "Import Files from Folder" is more efficient.
The screenshot shows 4 files successfully imported, with the list displaying their sequence number, name, path, extension, creation time, and modification time. The filenames are 1.ofd, 2.ofd, 3.ofd, 4.ofd, all located under D:\test\, with the extension ofd. The summary area at the bottom shows the record count is 4.
The purpose of this step is to establish a list of files to be processed. The batch processing software will execute conversion tasks one by one based on this list. After importing, it's recommended to check three things: first, whether the number of files is correct; second, whether the extensions are all ofd; third, whether any files not needing processing are included. If errors are found, delete the corresponding record in the "Actions" column, or use "Clear" and re-import.
After confirming the list is correct, click "Next" at the bottom to enter the parameter settings page.
Step 3: Select Page Processing Range, Deciding Which Pages Participate in Stitching
After entering "Set Processing Options", the first thing you see is "Processing Range". The interface provides multiple choices: All Pages, First Few Pages, Last Few Pages, Odd Pages, Even Pages, Custom. This setting determines which pages from each OFD file will be converted into images.
The screenshot shows "First Few Pages" is selected, and the number 2 is filled in the "Range" input box. This setting means: each OFD file will only process its first 2 pages. If an OFD has many pages but you only need the cover and the first page content, this setting is very suitable.
If your goal is to stitch all pages of the entire OFD into one long image, you should select "All Pages". If you only need the attachments at the end, choose "Last Few Pages". If processing only odd or even pages, you can also select according to the options provided in the interface. For tasks with more specific page requirements, use the "Custom" option, but refer to the software interface prompts for precise filling methods.
The more accurately the page range is set, the better the output matches requirements, and it can also reduce unnecessary image file size.
Step 4: Set Image Pixel Density PPI, Balancing Clarity and File Size
Below the processing range, you can see the "Image Pixel Density (PPI)" setting. The value in the screenshot is 300. PPI relates to the clarity of the output image, especially affecting the display quality of details like text, table lines, QR codes, and red stamps.
For office scenarios, 300 PPI is a commonly used choice. It is suitable for invoices, vouchers, contracts, notices, and forms, ensuring reading clarity. If PPI is set too low, the generated long image might appear blurry when zoomed in; if set too high, the image will be clearer but file size may increase, and processing time might also be longer.
Therefore, it's recommended to decide based on purpose: keep it at 300 for formal archiving, reimbursement submission, or contract retention; lower it appropriately as needed for temporary previews or quick internal communication. In any case, it's best to test the output effect with a few files before batch processing a large number.
Step 5: Enable the Long Image Stitching Switch to Merge Multiple Pages into One Image
Continue scrolling down to see the most critical setting of this article: "Stitch multiple pages into one very long image". This option is highlighted with a red box in the screenshot, indicating it is the key switch for creating a long image from OFD multi-page content.
After enabling this option, the software will stitch the selected multiple pages from the same OFD file into one vertically long image in page order. For example, if set to process the first 2 pages, then each OFD will have its first 2 pages combined into a single JPG file. If "All Pages" is selected, all pages of that OFD will be merged into the same long image.
This setting differs significantly from ordinary OFD-to-JPG conversion. Regular conversion might split a multi-page file into multiple images, whereas long image stitching is more suitable for scenarios requiring continuous reading. For documents like electronic invoice details, supplementary page explanations, and approval materials, long images make it easier to maintain content context.
Step 6: Set the Save Location and Start Batch Processing
After completing the settings for processing range, PPI, and long image stitching, click "Next" at the bottom of the page. As seen from the top workflow, the software includes two further steps: "Set Save Location" and "Start Processing". The save location specifies the output directory for the generated JPG files, and Start Processing executes the batch conversion.
It is recommended to create a separate output folder, such as "OFDtoJPGResults" or "LongImageOutput". This has two benefits: first, the original OFDs and converted JPGs won't be mixed together; second, it's easier to verify the file count after conversion. For example, if 4 OFDs were imported, you should normally see the corresponding JPG results in the output directory.
After setting the save location, proceed to "Start Processing". The software will automatically process based on the file list and set parameters, without the user needing to open each OFD individually. Once processing is complete, you can view the JPG long images in the output folder.
Frequently Asked Questions and Precautions
1. During OFD to JPG long image conversion, are filenames likely to become confusing?
Judging from the result images, source files 1.ofd, 2.ofd, 3.ofd, 4.ofd correspond to 1.jpg, 2.jpg, 3.jpg, 4.jpg after conversion. For easier management, it is advisable to name the OFD files in a standardized way before conversion, for instance, using invoice numbers, dates, client names, or business codes.
2. What if the long image becomes too long after converting a multi-page OFD?
If an OFD has many pages, selecting "All Pages" will generate a very long image, and the file size might also be large. In such cases, you can change the setting to "First Few Pages", "Last Few Pages", or another range based on actual needs, processing only the necessary pages.
3. Why pay attention to PPI?
OFD files often contain fine text, tables, QR codes, and seals. Too low a PPI affects recognition, while too high might increase file size. The screenshot uses 300 PPI, a relatively stable setting for office material conversion.
4. Is it necessary to back up original files before batch processing?
Although this operation converts OFD to JPG and does not explicitly state it will modify the original OFD, it is still recommended to keep the original files before batch processing important materials. Conversion results can be placed in a separate folder, making them easy to distinguish from the source files.
5. If I only want to convert a single page, do I still need to enable long image stitching?
If the processing range includes only 1 page, the benefit of long image stitching is not obvious; if the processing range includes multiple pages, enabling this option is necessary to stitch them into one image. Whether to enable it should be decided based on the actual output requirements.
Summary: Reduce Repetitive Work in OFD Image Processing with Batch Conversion
The key to batch-generating JPG long images from multiple OFDs lies not in complex operations, but in setting the correct batch rules once. The entire workflow can be summarized as: select the "Convert OFD to JPG Image" function, import multiple OFD files, set the page range, set the image pixel density PPI, enable "Stitch multiple pages into one very long image", and finally choose the save location and start processing.
Through HeSoft Doc Batch Tool , users do not need to open OFD files one by one, nor manually take screenshots, crop, stitch, and rename. For office workers frequently handling invoices, vouchers, government documents, and archival materials, this batch conversion method can significantly reduce repetitive labor, improve file organization efficiency, and make the output results more uniform.
If you are currently faced with a batch of OFD files that need converting into JPG long images for easier viewing, uploading, and sharing, you can follow the steps in this article to first test the effect with a few files. Confirm the page range and PPI are suitable, then batch process all files. This ensures output quality while making the entire office workflow more efficient and controllable.