This article explains how to use HeSoft Doc Batch Tool to batch convert multiple OFD files into JPG images, and during the conversion, stitch multiple pages from the same OFD into a long image. It is suitable for scenarios like processing electronic invoices, electronic vouchers, formatting document archiving, web page display, and image previews. The article combines screenshots of the software interface to illustrate the complete process from selecting functions, importing files, setting page ranges, adjusting PPI to enabling long image stitching, helping users reduce repetitive export operations.
In daily office work, OFD files frequently appear in electronic invoices, electronic certificates, electronic official documents, archived materials, and business vouchers. Often, we don't just want to open OFD to view the content, but need to convert OFD pages into JPG images for easy uploading to systems, inserting into documents, sending to clients, or archiving. If there's only one file, manual conversion is acceptable; but when the number of files increases, and each OFD contains multiple pages, opening each one, taking screenshots page by page, and then manually stitching them into a long image becomes very time-consuming and prone to missing pages or sequence errors.
The problem this article aims to solve is clear: How to batch convert OFD files into JPG images and stitch multiple pages into one long image. The office software in the screenshots is " HeSoft Doc Batch Tool ", which is positioned as a batch file processing tool for office scenarios, suitable for centralizing repetitive document conversion, organization, and renaming operations. The following will combine pre-processing, post-processing, and step-by-step screenshots to explain how to complete the batch conversion of OFD to long JPG images.
Applicable Scenarios: When do you need to convert OFD pages into one long image
OFD is a common fixed-layout document format characterized by fixed page layouts and stable content presentation, suitable for formal documents and electronic receipt preservation. However, in many business processes, the recipient may not be able to open OFD files directly, or the system only allows uploading image formats, such as JPG, JPEG, and PNG. In such cases, converting OFD to images is necessary.
If an OFD has only one page, converting it directly to one JPG is sufficient; if an OFD contains multiple pages, such as contract attachments, reimbursement receipts, scanned archive materials, and business approval forms, exporting each page as a separate image will generate many files, making viewing and sending inconvenient. Stitching multiple pages into one long image allows content to be displayed continuously, which is especially suitable for mobile viewing, sending via chat software, web preview, and data archiving.
The method described in this article is particularly suitable for the following scenarios: batch converting electronic invoice OFD files to JPG images; batch exporting multi-page OFD vouchers as long images; merging the first few pages or a specified range of pages of an OFD file into one image; needing to process multiple OFD files at once to avoid repeated clicking and manual screenshots; wanting to maintain page clarity and controlling the exported image quality through PPI parameters.
Effect Preview: Multiple OFD files before processing, resulting in long JPG images after processing
First, look at the file status before processing. In the example folder, there are 4 OFD files, named 1.ofd, 2.ofd, 3.ofd, and 4.ofd respectively. If these files were opened and converted one by one, you would need to repeat the operation multiple times; if each file also contains multiple pages, the workload would further increase.
After processing is complete, you can see the output results have become JPG images, with corresponding file names 1.jpg, 2.jpg, 3.jpg, 4.jpg. In the screenshot, 1.jpg on the left appears as a vertical long image, indicating that multiple pages within the same OFD have been stitched into one image. Other files are also exported as corresponding JPG images according to their content, facilitating subsequent viewing, sending, and saving.
The advantages of this processing result include: one OFD corresponds to one image, reducing the number of files; multi-page content is connected, making reading more intuitive; after batch conversion, the naming rules maintain a correspondence, making it easy to trace from the original OFD to the exported JPG result. For users who need to batch organize electronic receipts, contract attachments, or fixed-layout materials, this is more stable than manual screenshots and stitching.
Operation Steps: Batch Convert OFD Files to Long JPG Images
Step 1: Enter the "Convert OFD to JPG Image" function in the software
After opening HeSoft Doc Batch Tool , you can see multiple batch processing function cards on the main interface. According to the screenshot, the current selection needed is "2. Convert OFD to JPG Image," indicating this function is used to "batch convert OFD files to JPG format images." The purpose of this step is to enter the process specifically for OFD-to-image conversion, rather than selecting OFD-to-PDF or other format conversion functions.
In this step, it's important to note that there are different categories of tool entries on the left side of the software interface, such as Word Tools, Excel Tools, PDF Tools, Image Tools, More Tools, etc., but the current topic is OFD to JPG, so you should enter through the corresponding function card. After selecting the correct function, the subsequent page will enter a wizard-style processing flow, making it convenient to complete the batch conversion step by step.
Step 2: Add or import OFD files from a folder that need processing
After entering the "Convert OFD to JPG Image" page, you can see buttons like "Add Files," "Import Files from Folder," "Clear," and "More" at the top of the interface. In the screenshot, the list has already imported 4 OFD files, located in the D drive test folder, all with the .ofd extension. The table also displays information such as sequence number, name, path, extension, creation time, and modification time, with a summary record count of 4 at the bottom.
The purpose of this step is to add the OFD files that need batch conversion to the pending list. If the number of files is small, you can use "Add Files" to select them; if all OFD files are concentrated in the same folder, you can use "Import Files from Folder," which is more suitable for batch processing. After importing, it's recommended to check the file names and paths in the list to confirm that other formats were not mistakenly selected or OFD files needing conversion were omitted.
If an import error occurs, you can use the delete operation on the right side of the list to remove individual files; if the entire batch of files needs to be reselected, you can use "Clear" and then re-import. After confirming the list is correct, click "Next" at the bottom of the page to enter the processing option settings.
Step 3: Set the page processing range, deciding which pages to convert
After entering Step 2 "Set Processing Options," the first thing appearing in the interface is the "Processing Range." According to the screenshot, the software provides options such as "All Pages," "First Few Pages," "Last Few Pages," "Odd Pages," "Even Pages," and "Custom." In the example, "First Few Pages" is selected, and the number 2 is entered in the range input box, meaning only the first 2 pages of each OFD file will be processed.
If you wish to convert the entire OFD into an image, you can select "All Pages"; if you only want to export the first page, first two pages, or first few pages for preview, you can select "First Few Pages" and fill in the number; if only the last attachment pages are needed, you can select "Last Few Pages"; if there are fixed page number rules, you can also choose odd pages, even pages, or a custom range based on actual needs.
The page range setting will directly affect the content included in the final long image. For example, after selecting the first 2 pages and enabling long image stitching, each OFD will have its first 2 pages stitched into one long JPG image; if all pages are selected, all eligible pages in that file will be stitched into an even longer image. It is recommended to clarify the usage purpose before processing to avoid exporting too much content resulting in an overly long image, or too small a range causing key pages to be missing.
Step 4: Set the image pixel density PPI, balancing clarity and file size
On the same page, you can also see the "Image Pixel Density (PPI)" setting, with a value of 300 in the screenshot. PPI usually affects the clarity and volume of the exported image. Higher values generally result in clearer image details but may also produce larger JPG files; lower values lead to smaller file sizes, but details like text, seals, and QR codes may not be clear enough.
For OFD files like electronic invoices, contracts, and vouchers where clear text and seal impressions are necessary, 300 PPI is a common clarity choice. If only used for quick previews, it can be appropriately lowered according to the actual situation; if printing or high-definition archiving is needed, adjustments should be made cautiously to ensure the output image is readable. Since the screenshot already shows 300 PPI, this article explains based on that value.
Step 5: Enable "Stitch multiple pages into one long image"
The key setting to achieve "OFD pages converted into one long image" is the switch "Stitch multiple pages into one long image" at the bottom of the screenshot. When this option is enabled, the software will stitch multiple pages within the processing range of the same OFD in sequence into one long image, instead of outputting a separate image for each page.
This step is very important. If long image stitching is not enabled, a multi-page OFD may export multiple JPGs, significantly increasing the number of files; once enabled, one OFD corresponds to one long image, which is more suitable for continuous reading and unified sending. Combining the example results, 1.ofd outputs as 1.jpg, and 1.jpg appears as a vertical long image containing multi-page content, effectively demonstrating the effect of this option.
After completing the settings, click "Next." Since the wizard at the top of the interface also shows Step 3 "Set Save Location" and Step 4 "Start Processing," follow the wizard subsequently to set the output location and begin processing. It is recommended to choose an easily identifiable folder for the save location, such as creating a "JPG Output" or "Long Image Result" directory, to avoid mixing them up with the original OFD files.
Common Questions and Considerations
1. Why choose JPG instead of keeping the OFD format?
OFD is suitable for formal archiving and maintaining fixed layouts, but the universality of JPG images is higher. Many business systems, chat tools, web backends, or mobile applications offer better support for images and may not necessarily support direct OFD preview. Therefore, when quick viewing, uploading, or sending is needed, converting OFD to JPG is more convenient.
2. Must multi-page OFDs always be stitched into a long image?
Not necessarily. If you need to edit or upload page by page, you might not stitch them into a long image; if you want one file to generate only one image, facilitating continuous reading and reducing file count, you should enable "Stitch multiple pages into one long image." Whether to stitch depends on the subsequent usage method.
3. How should the page range be selected?
If you need to preserve the complete content, selecting "All Pages" is recommended. If you only want to generate a preview image, you can select "First Few Pages"; if only attachments or signature pages are needed, you can select the last pages or a custom range based on the document structure. In the example, selecting the first 2 pages is suitable for scenarios where only the beginning part of each OFD is needed for export.
4. Is a higher PPI setting always better?
No. Higher PPI benefits clarity but also increases file size, which is especially noticeable for long images. When processing a large number of OFD files, if the PPI is too high, the output files may be large, slowing down transfer and loading speeds. It is recommended to choose an appropriate value based on the usage purpose; the 300 PPI in the example is suitable for text-based materials and receipt files.
5. What preparations are needed before batch processing?
It is recommended to first put the OFD files to be converted into the same folder, with file names kept as clear as possible, such as named by number, date, or business name. After importing into the software, check the record count, file paths, and extensions, and only proceed to the next step after confirming correctness. This can reduce missed processing and errors.
Summary: Convert OFD to Long Images Using a Batch Processing Tool to Reduce Repetitive Operations
Converting multiple pages of an OFD file into one long image involves a core process that is not complex: enter the "Convert OFD to JPG Image" function, import the OFD files that need processing, set the page range and PPI, enable "Stitch multiple pages into one long image," then continue to set the save location and start processing. Compared to manually opening OFD, taking screenshots page by page, and then stitching with an image tool, using HeSoft Doc Batch Tool can process multiple files at once, with more uniform output results.
If you frequently process electronic invoices, electronic vouchers, OFD fixed-layout files, or multi-page archive materials, it's recommended to standardize this type of conversion process: first centralize and organize the original files, then batch import them, and finally output uniform long JPG images. This not only saves a significant amount of repetitive labor but also reduces risks such as missed pages, page sequence errors, and naming confusion. You can now follow the steps in this article to prepare several OFD files for testing, and after confirming the effect, apply it to formal batch tasks.