When the same dates, names, numbers, or fixed keywords need to be uniformly modified across multiple PDF files, opening each file to search and edit is not only time-consuming but also prone to omissions. This article uses the example of batch replacing "April" and "2017" with "August" and "2026" in multiple PDFs to explain how to use HeSoft Doc Batch Tool to perform batch find and replace of PDF keywords, including importing PDFs, setting up find and replace lists, selecting save locations, and checking processing results, suitable for batch maintenance scenarios such as contracts, reports, notices, and archived files.
In daily office work, PDF files are often used for contracts, reports, policy documents, notifications, bidding documents, archival materials, and other scenarios. The problem is that when the same keywords appear in these PDFs and need to be uniformly modified—such as dates, project names, company names, version numbers, report numbers, or contact information—manually opening and processing the files one by one is very inefficient. Especially when dozens or even hundreds of PDF files all require replacing the same word with new content, manual search is not only time-consuming but may also affect final delivery due to missed corrections on a certain page or in a certain file.
This article aims to solve the repetitive office task of "batch finding and replacing keywords in many PDF files." We will use screenshots and take HeSoft Doc Batch Tool as an example to demonstrate how to batch replace keywords in multiple PDF files. In the example, a pre-processing PDF page contains the date "April 13, 2017," which becomes "August 13, 2026" after processing. The entire process does not require opening and manually modifying each PDF; instead, you import multiple PDFs at once in the office software, set the find and replace terms, and then execute in batch.
Applicable Scenarios: Which PDFs are suitable for batch finding and replacing keywords
Batch PDF find and replace is suitable for files with similar content structures where certain text needs to be uniformly changed. For example, when a company updates template files annually and needs to replace the old year with the new one; when legal or administrative staff process multiple contracts or agreements and need to replace old company names, department names, or contact information with new content; when project materials are prepared for archiving and version numbers, dates, or project abbreviations in multiple PDF reports need to be uniformly revised; in training, bidding, financial auditing, and other scenarios, there may also be a need to batch replace fixed keywords in a large number of PDF files.
As can be seen from the screenshot, this process involves 4 PDF files in the same folder, named 1.pdf, 2.pdf, 3.pdf, and 4.pdf. They all need to perform the same keyword replacement task. For such tasks with "many files and consistent modification rules," using a batch processing tool is more suitable than manual individual editing.
It should be noted that batch finding and replacing keywords in PDFs typically relies on the presence of recognizable text content within the PDF. If the PDF is a scanned document or image-based PDF, the text on the page might essentially be an image; whether direct replacement is possible depends on the text layer status of the file itself. Therefore, before formal batch processing, it is recommended to test the effect with a small number of files first to confirm that the target keywords can be accurately recognized.
Effect Preview: Keyword status in PDF before processing
Before processing, we open one of the PDF files for review. In the screenshot, the first page of the PDF displays a report cover, with the date position containing "April 13, 2017." For illustrative purposes, the screenshot uses a red box to mark the two key parts that need to be replaced: the month "April" and the year "2017." This indicates that our replacement goal is not simply to change a filename but to modify the actual text content within the body of the PDF page.
If there were only one PDF file, manual searching and modification might still be acceptable; but when the number of files increases to dozens, and each file may have multiple pages, manual processing introduces significant risks. First, the repetitive search process is prone to fatigue; second, opening, saving, and closing files takes considerable time; third, if the same keyword appears on multiple pages or in multiple files, it's difficult to ensure no omissions manually; fourth, post-processing review is needed, further extending the work cycle. The value of a batch tool lies in consolidating these repetitive steps into a single setup.
Effect Preview: Keyword changes in PDF after processing
After batch processing is complete, opening the PDF for review shows that the original "April 13, 2017" has changed to "August 13, 2026." That is, the month was replaced from April to August, the year from 2017 to 2026, and the middle date "13," remains unchanged. This effect is very suitable for making unified revisions to fixed fields in PDFs.
From the processed page, it can be seen that the replacement result is directly reflected in the PDF content, not just by modifying the file list or file properties. For PDF documents that need to be delivered to clients, archived in systems, or uploaded to platforms, it is still recommended to spot-check a few files after batch replacement to confirm that page display, text positioning, and replacement content meet expectations.
Operation Steps: Using office software to batch replace PDF keywords
Step 1: Enter the PDF tool and select "Find and Replace Keywords in PDF"
After opening HeSoft Doc Batch Tool , you can see multiple office file processing modules in the left function category, including PDF Tools, Word Tools, Excel Tools, PowerPoint Tools, Text Tools, Image Tools, etc. Since this task involves processing keywords in PDF content, first enter "PDF Tools" on the left.
In the PDF Tools list, select "Find and Replace Keywords in PDF". In the screenshot, this function card is at the top of the list, and the description text reads "Batch find and replace keywords in PDF file content." The purpose of this step is to enter the specialized processing flow for PDF body text keyword replacement, rather than performing other operations like PDF merging, encryption, watermarking, or format conversion.
After entering this function, the software guides the user through a wizard-style process. The page shows that the entire process is roughly divided into stages: "Select records to process," "Set processing options," "Set save location," and "Start processing." This flow is suitable for batch office scenarios because each step focuses on a clear objective, reducing the possibility of missing settings.
Step 2: Add PDF files for batch processing
After entering the "Find and Replace Keywords in PDF" function, the first step is to import the files to be processed. The top right of the page provides operation entry points like "Add Files," "Import Files from Folder," "Clear," and "More." For a small number of files, you can use "Add Files"; if an entire folder contains PDFs pending processing, you can use "Import Files from Folder," which adds multiple files to the list more quickly.
The screenshot shows that 4 PDF files have been imported: 1.pdf, 2.pdf, 3.pdf, and 4.pdf, all located in the test folder on drive D. The list also displays information such as extension, creation time, modification time, and a summary at the bottom shows "Record Count: 4." The purpose of this step is to confirm which PDFs will participate in this batch find and replace. Only files present in the list will be processed.
Before proceeding to the next step, it's recommended to check the file list for completeness, avoiding accidentally adding PDFs that shouldn't be modified and ensuring no files needing processing are missed. If a file is found that should not participate, it can be removed using the delete operation on the right side of the list; if files are imported incorrectly, you can also use "Clear" and re-add. After confirming the records are correct, click "Next" at the bottom.
Step 3: Set find method, find keywords, and replacement keywords
Upon entering "Set Processing Options," you need to tell the software which keywords to find and what to replace them with. In the screenshot, the "Find Method" is set to "Exact Text Match." This means the software will perform an exact match based on the input text, suitable for replacing clear dates, names, numbers, fixed phrases, etc.
In the "Keyword list to find," the example has two lines: the first is April, and the second is 2017. In the "Replacement keyword list" on the right, August and 2026 are correspondingly entered. Based on the interface layout, it's reasonable to understand that the 1st line on the left corresponds to the 1st line on the right, and the 2nd line on the left to the 2nd line on the right. Therefore, this batch processing will replace April with August and 2017 with 2026 in the PDFs.
This page also has some additional options, such as "Ignore letter case" and "Match complete word instead of part of the word." These options are useful for different tasks: if you are unsure whether the English case is consistent in the PDF, consider ignoring case; if you're concerned about mistakenly replacing part of a word, you can focus on complete word matching. In actual use, choose carefully based on the document content, especially when dealing with company abbreviations, English acronyms, numbers, and other text easily found inside other words, to avoid erroneous replacements.
After completing the settings, click "Next" to proceed to the save location settings.
Step 4: Set save location and start batch processing
The top of the process flow in the screenshot shows that subsequent steps include "Set Save Location" and "Start Processing." The core purpose of these two steps is to determine where the processed PDFs will be saved and to formally execute the batch replacement task. To reduce the risk of operational errors, it is recommended to save the processed files into a new output folder rather than directly overwriting the original files. This way, even if the replacement rules are found to be unsuitable, you can return to the original PDFs for reprocessing.
After setting the save location, continue to the "Start Processing" stage. The software will execute the batch find and replace on multiple PDF files according to the previously imported PDF list and keyword replacement rules. Once processing is complete, you can open the PDFs in the output folder for spot-checking, focusing on whether the original keyword locations have changed to the new keywords and whether other content remains normal.
Frequently Asked Questions and Notes
1. Why was some text in the PDF not replaced?
A common reason is that the content in the PDF is not editable text but scanned images or image-based pages. Batch replacement functionality usually works on PDF text content. If the page text is essentially an image, the software may not be able to directly replace the words in the image with new ones. In such cases, first confirm whether the PDF has a text layer, or choose another solution suitable for processing scanned documents.
2. Can multiple keywords be replaced at once?
As seen in the screenshot, the keyword list supports entering multiple find words line by line, and the replacement keyword list corresponds line by line. Therefore, like in the example, April and 2017 can be replaced in the same task. In actual use, maintain the line count and order correspondence between the left and right sides to avoid replacing word A with an unmatched word B.
3. What should be noted when replacing English words?
English keywords may involve issues of case sensitivity and word boundaries. For example, April, APRIL, and april might all exist in different documents; some short words might also appear inside other words. When using "Ignore letter case" or "Match complete word instead of part of the word," you should first understand the document content before deciding whether to select the option, to avoid missed replacements or erroneous ones.
4. Is it necessary to back up PDFs before processing?
Backup is recommended. Batch processing is highly efficient, but if rules are set incorrectly, multiple files could be changed incorrectly at once. A safer practice is to keep the original files untouched, output the processed PDFs to a new folder, and then use them for archiving or distribution only after spot-checking confirms correctness.
Summary: Using batch processing to reduce repetitive PDF modification work
Batch finding and replacing PDF keywords is essentially about handing over a large volume of repetitive, error-prone manual operations to office software. Through HeSoft Doc Batch Tool , you can first import multiple PDF files, then set the keywords to find and the content to replace them with, and finally output the processing results uniformly. For high-frequency office tasks such as date updates, name changes, version number maintenance, and number corrections, this method can significantly reduce the time spent opening and searching/modifying PDFs individually.
If you also have many PDFs where the same keywords need to be uniformly replaced, it is recommended to first prepare a test file, complete a small-scale validation following the steps in this article; after confirming the replacement effect is correct, import the entire folder for batch processing. This way, you enhance efficiency while ensuring the accuracy and traceability of file modifications.