Many office documents are saved as multiple scattered PDF files, making organization, sending, and archiving inconvenient. This article uses HeSoft Doc Batch Tool as an example to explain how to use the "Merge PDF files into one file" feature, combining multiple PDFs such as 1.pdf, 2.pdf, 3.pdf, 4.pdf, and 5.pdf into a single merge.pdf after sorting by name. The article includes the effects before and after processing, detailed operation steps, and notes to help users quickly master the PDF batch merging process.
When processing documents in the office, you often encounter situations like this: a complete information package has been split into multiple PDF files, each containing only a portion of the content. For example, a project has 5 PDFs: 1.pdf, 2.pdf, 3.pdf, 4.pdf, 5.pdf. They seem clear when saved individually, but once you need to send them to a client, upload them to a system, archive them in a records library, or print them uniformly, it becomes less convenient.
If you only occasionally merge two or three PDFs, manual processing might be tolerable; but if you organize large volumes of scans, contract attachments, invoice vouchers, or report materials every day, you should use office software with batch processing capabilities. The " HeSoft Doc Batch Tool " in the screenshot is a tool software designed for batch document processing, helping users batch merge multiple PDFs into a single PDF file, reducing repetitive operations like selecting, opening, and saving repeatedly.
This article will focus on the requirement of "batch merging PDFs into a single file," using screenshots to explain the complete process: from selecting the PDF merge function, to importing multiple PDFs, to setting the merge order by name ascending or descending, and finally outputting a merged PDF, such as merge.pdf.
Applicable Scenarios: Why Merge Multiple PDFs into One
The value of merging multiple PDFs into one mainly lies in material delivery, reading continuity, and file management efficiency. Especially in the following scenarios, batch merging can significantly improve office efficiency.
- Sending materials externally: After merging multiple PDFs into one file, you only need to send a single attachment, reducing the risk of missed or incorrect sends.
- Internal approval workflows: Approvers can open one PDF and view all content continuously without switching between multiple files.
- Electronic archiving: Merging multiple PDFs related to the same matter into one archive file makes subsequent retrieval and backup clearer.
- Batch printing: After merging, print one PDF directly to avoid order confusion caused by opening and printing files individually.
- Organizing scanned files: PDFs generated from multiple scans can be merged into one complete scan copy.
These scenarios essentially solve a single problem: turning scattered files into a more structurally complete and easier-to-manage single PDF. For administrative, HR, finance, legal, sales, and project document management roles, this type of batch file processing function is very practical.
Effect Preview: Merging 5 PDF Files into 1 PDF File
Before processing, the folder contains multiple independent PDFs. The example screenshot shows 5 PDF files, named sequentially as 1.pdf, 2.pdf, 3.pdf, 4.pdf, 5.pdf. Each file exists as a separate PDF; to view all the content, you need to open them individually.

After processing, multiple PDFs are merged into a new PDF file. The resulting file generated in the example is merge.pdf. By this point, the originally scattered materials have been consolidated into one PDF, making it more suitable for unified sending, saving, and archiving.

From the before-and-after comparison, it's clear that batch PDF merging is not just about simply reducing file counts; more importantly, it centralizes the material structure. Especially when multiple PDFs belong to the same business matter, the merged file better aligns with actual office delivery habits.
Operation Steps: Complete Multiple PDF Merges Following the Wizard
The operation process of " HeSoft Doc Batch Tool " uses a step-by-step wizard. The steps at the top are sequentially: Select Records, Set Processing Options, Set Save Location, and Start Processing. The following explanation is combined with screenshots step by step.
Step 1: Find the Merge Function in PDF Tools
After launching the software, the tool category navigation is on the left. You can see the "PDF Tools" category is selected, and the right side displays multiple batch processing functions related to PDF, such as Find and Replace Keywords in PDF, PDF Split, PDF Add Watermark, PDF Add Page Numbers, etc.
The function needed this time is the second one: "Merge PDF files into one file." This function card is highlighted in the screenshot, indicating its purpose is to batch merge multiple PDF files into one PDF file.

The key to this step is selecting the correct function entry. Because PDF tools contain many operations, mistakenly choosing split, delete pages, or add watermark would prevent achieving the goal of merging multiple PDFs into one.
After making the selection, the software will enter the specific processing page for this function.
Step 2: Import the PDF Files to Merge
After entering the "Merge PDF files into one file" page, you first arrive at "Select Records to Process." At the top right of the interface are two common entry points: "Add File" and "Import Files from Folder."
If all PDFs are already in the same folder, it is recommended to use "Import Files from Folder," which allows you to import all PDFs in the folder at once, suitable for batch processing. If you only want to select some files from different locations, you can use "Add File."
After importing, the files will be displayed in a table. The table columns in the screenshot include Serial No., Name, Path, Extension, Creation Time, Modification Time, and Actions. There are 5 records in the example: 1.pdf, 2.pdf, 3.pdf, 4.pdf, 5.pdf, all with the pdf extension, located under D:\test\.

The purpose of this step is to let the software know which PDF files need to participate in the merge. After importing, focus on checking three points: whether the file count is correct, whether the file names are correct, and whether any PDFs not intended for merging were accidentally included. The bottom of the interface shows the record count as 5, indicating that 5 PDF files have been selected.
Step 3: Use the List to Check and Organize Records Pending Processing
Before starting the merge, it's not advisable to skip the check. The page order in the merged PDF is closely related to the source file order. If files are imported incorrectly or the order does not meet requirements, the final generated PDF will need rework.
In the screenshot, the "Actions" column on the right provides an entry to delete a single record. If a certain PDF should not be merged, it can be removed first. There is also a "Clear" button at the top right, suitable for restarting when there are many import errors. Above the table, "Filter" and "Sort" are also displayed, which can help organize the records in the list.
After checking, click "Next" at the bottom to enter the processing options page. At this point, the first step "Select Records to Process" is complete, and the software will continue to guide the user to set the merge rules.
Step 4: Choose to Merge by Name Ascending or Descending
The second step is "Set Processing Options." As seen in the screenshot, "Sort Method" is the main setting on the current page, offering two options: "Merge by Name Ascending" and "Merge by Name Descending."

If the file names are 1.pdf, 2.pdf, 3.pdf, 4.pdf, 5.pdf, and you want the merged result to maintain this reading order, generally choose "Merge by Name Ascending." This suits file naming conventions like chapter numbers, attachment numbers, or page numbers going from small to large.
If your file naming logic is the opposite, for example, wanting 5.pdf to appear before 4.pdf, or needing to merge from a larger number to a smaller number, you can choose "Merge by Name Descending."
On the same page, you can also see a toggle for "Set filename as bookmark." This toggle is off in the screenshot. This option relates to the reading navigation after merging: if each PDF represents an independent section, enabling it makes it easier to identify content by file name; for a simple continuous merge, not enabling it still completes the task.
After finishing the settings, click "Next."
Step 5: Set the Save Location for the Merged PDF
The third step of the wizard is "Set Save Location." Although the screenshot does not show the specific details of this page, the interface flow shows that setting the save location is a mandatory step before starting the process. Users need to specify where the merge result should be saved.
In actual office work, it is recommended to follow two principles for the save location. First, save to an easily findable directory, such as the folder containing the original PDFs or a project output folder. Second, the file name should express its purpose, such as "Contract_Documents_Merged.pdf," "Reimbursement_Attachments_Summary.pdf," or merge.pdf as in the example.
If a file with the same name already exists in the directory, it's recommended to confirm whether the old file needs to be kept to avoid confusion later. For important business materials, keeping the original PDFs before merging is a safer practice.
Step 6: Start Processing and Generate the Final PDF
After completing the save location settings, you enter the fourth step, "Start Processing." The software will execute the merge based on the previously imported PDF list and the selected sort method. For this example, the software will merge 1.pdf, 2.pdf, 3.pdf, 4.pdf, 5.pdf into one new PDF file.
After processing is complete, go to the save directory to check the result file. Based on the post-processing screenshot, this example ultimately yields merge.pdf. After opening the file, check if the page order meets expectations and if the content is complete. If the order is wrong, you usually just need to go back to the processing options and adjust the ascending or descending order; if files are missing, go back to the first step to re-examine the import list.
Frequently Asked Questions and Precautions
1. Does the PDF file name affect the merge order?
Yes. The processing options in the screenshot explicitly provide merging by name ascending and descending, so the file name is an important factor affecting the merge order. It is recommended to organize file names before importing. Especially when there are more than 9 files, consider using numbering like 01, 02, 03 or 001, 002, 003 to make the sorting more stable.
2. When there are many files, should I use "Add File" or "Import Files from Folder"?
If the PDF files are centrally stored in the same directory, using "Import Files from Folder" is more suitable for batch import—it's faster and less likely to miss selections. If files are scattered across multiple locations, using "Add File" to select them in batches is more flexible.
3. What should I do if I've selected extra files after importing?
You can delete unwanted records using the "Actions" column in the table. If the overall import result does not meet requirements, you can use "Clear" to reselect. It is recommended not to wait until the process is finished before checking, as this will increase rework costs.
4. How should the merged file be named?
The result file is named merge.pdf in the example. In actual office work, it is recommended to use more business-meaningful file names, like "July_2026_Reimbursement_Attachments_Merged.pdf" or "Project_Acceptance_Materials_Summary.pdf." This facilitates subsequent retrieval and archiving.
5. Is it suitable for processing a large number of PDFs?
This function is positioned for batch merging of multiple PDF files into one PDF file. Compared to manually opening and merging each one, batch processing is more suitable when there are many files. However, when processing a large number or very large size PDFs, it is recommended to close unnecessary programs before starting the process and wait for the task to complete before opening the result file for inspection.
Summary: Standardize the PDF Merge Process to Improve File Organization Efficiency
Batch merging multiple PDFs into a single file is a highly practical method for organizing office documents. Through " HeSoft Doc Batch Tool ", users can select "Merge PDF files into one file" in PDF Tools, then follow the steps to import files, set the sort method, choose a save location, and start processing.
Compared to manual processing, this approach's advantages lie in its clear process, suitability for batch operations, and reduction of repetitive labor. In the example, 5 PDF files were ultimately merged into one merge.pdf, reducing file count, centralizing material structure, and making subsequent sending, printing, and archiving more efficient.
If you are organizing a batch of contracts, scans, invoices, reports, or project attachments, it is recommended to first place the files in the same directory and organize the naming order, then use the PDF batch merge function to generate the final PDF in one go. This ensures standardized processing results and saves a significant amount of time on repetitive operations.