When multiple PDF reports, contracts, or documents contain identical dates, project names, version numbers, or other content that needs to be uniformly modified, opening each file individually to find and replace is not only time-consuming but also prone to omissions. This article uses HeSoft Doc Batch Tool as an example to demonstrate how to import multiple PDF files at once, set the keywords to find and the replacement content, and batch generate processing results, helping users quickly complete unified updates to PDF file content.
In daily office work, PDF files are often used for report archiving, contract circulation, material distribution, and formal document publishing. The problem is, once keywords that need uniform modification appear in these PDFs, such as dates, years, company names, project numbers, product models, or version numbers, manually opening and modifying files one by one is not only inefficient but also highly prone to omissions and errors. Especially when handling a large number of PDF files in the same batch, repeatedly searching for the same set of text consumes a significant amount of time.
The problem this article aims to solve is: how to batch find and replace keywords in many PDF files. Below, combined with screenshots, using the office software HeSoft Doc Batch Tool as an example, it illustrates the complete workflow from selecting the function, importing PDFs, setting find and replace content, to viewing the processing results. This tool is positioned for batch document processing, suitable for consolidating repetitive file operations into a single task, thereby reducing manual repetitive labor.
Applicable Scenarios: Which PDF Content is Suitable for Batch Find and Replace
Batch finding and replacing PDF keywords is most suitable for processing text content that appears repeatedly across multiple PDFs and needs unified updates. For example, the publication dates in a batch of historical reports need to be changed from old dates to new ones, the company abbreviations in a batch of contract templates need to be replaced, the version numbers in a batch of product manuals need to be upgraded, or the years in multiple documents need to be uniformly adjusted. As long as this content exists as recognizable text in the PDFs, it can be considered for processing through batch find and replace.
From the screenshot, it can be seen that the example involves processing 4 PDF files, named 1.pdf, 2.pdf, 3.pdf, and 4.pdf. They are located in the same folder, representing a typical multi-file batch processing scenario. Using traditional methods would require opening the 4 PDFs one by one, searching for "April" and "2017" in each file, and changing them to "August" and "2026" respectively. The more files there are, the more obvious the repetitive operation becomes.
After using a batch processing tool, the user only needs to add these 4 PDFs to the task list at once, then configure the list of keywords to find and the list of keywords to replace them with, and the software can execute the batch process according to the same rules. For positions in administration, HR, legal, project management, and document organization, this type of operation can significantly save processing time.
Effect Preview: Old Keywords Exist in Multiple PDFs Before Processing
Before processing, there are multiple PDF files in the folder that need unified modification. The example includes four files: 1.pdf, 2.pdf, 3.pdf, and 4.pdf, indicating that this is not a single PDF editing issue but a batch content modification problem for multiple PDF files.
After opening one of the PDF files, you can see that the date on the page is "April 13, 2017". The screenshot highlights the two keywords that need to be replaced with red boxes: "April" and "2017". The reason these are separated into two keywords is that the actual replacement target is not the entire date string, but rather replacing the month and year with new content respectively.
This scenario is very common: PDFs may contain dates or numbers in a fixed format, where part of the content needs updating while the rest remains unchanged. For example, in "April 13, 2017", the "13," does not need modification. Only "April" needs to be changed to "August", and "2017" to "2026". Batch find and replace can accomplish this kind of partial update more precisely.
Effect Preview: Keywords in PDFs Have Been Uniformly Updated After Processing
After processing is complete, open the PDF again, and you can see that the original "April 13, 2017" has been changed to "August 13, 2026". The red box shows that both the month and year have been replaced as configured, while the "13," in the date remains, indicating that the replacement rules only applied to the specified keywords.
This result demonstrates that by batch finding and replacing PDF content, uniform modifications can be completed without manual page-by-page editing. For a batch of reports, notifications, certificates, manuals, or archived materials with similar structures, batch keyword replacement is more stable and easier to review than processing files individually.
Operation Step 1: Select the Find and Replace Function in the PDF Tool
After opening HeSoft Doc Batch Tool , you can see multiple tool categories on the left, including Word Tools, Excel Tools, PowerPoint Tools, PDF Tools, etc. Since this task involves processing PDF files, you need to enter the "PDF Tools" category on the left.
In the PDF tools list, select "Find and Replace Keywords in PDF". In the screenshot, this function is located as the first item in the PDF tools list, indicating it is a specialized function for batch finding and replacing keywords in PDF file content. After clicking this function, you can enter the task configuration workflow.
The purpose of this step is to confirm the use of the correct function entry point. Many users mix up operations like PDF editing, PDF conversion, and adding watermarks to PDFs, but for batch text replacement, you should select "Find and Replace Keywords in PDF", not functions like PDF to Word or adding watermarks. After selecting the correct function, the subsequent interface will unfold around importing files, setting processing options, setting the save location, and starting the process.
Operation Step 2: Add the PDF Files to Be Processed
After entering the function page, you can see buttons like "Add File", "Import Files from Folder", "Clear", "More", etc., at the top of the interface. The middle area displays the processing steps for the current task, with the first step being "Select the records to be processed".
If you only need to process a few specified PDFs, you can click "Add Files" to select them one by one; if the PDFs are all in the same folder, it is more suitable to use "Import Files from Folder" to add the PDFs from that folder to the task in one go. The screenshot shows that 4 PDF files have already been added, with the list displaying information such as file name, path, extension, creation time, and modification time.
From the file list, you can see that 1.pdf, 2.pdf, 3.pdf, and 4.pdf have all been added to the task, with the path as the test directory on the D drive and the extension as pdf. The summary area at the bottom shows "Record Count: 4", indicating that the current batch task will process 4 PDF files. At this point, you should check if the number of files is correct, and confirm that no files have been omitted or incorrectly added that don't need processing.
If you find that a file should not be processed, you can remove it via the action button on the right side of the list. If imported incorrectly, you can also use the "Clear" button at the top to re-add. After confirming the file list is correct, click the "Next" button at the bottom to enter the keyword setting interface.
Operation Step 3: Set the Keywords to Find and Their Replacement Content
The second step is the core of this task: setting the processing options. The screenshot shows that the current page is "Set Keyword Options", with the search method selected as "Exact text search". This means the software will match text exactly as the user enters it, suitable for replacing explicit dates, years, names, numbers, etc.
In the "List of keywords to find" on the left, the example has two lines of input: the first line is "April", and the second line is "2017". In the "List of replacement keywords" on the right, "August" and "2026" are correspondingly entered. This means the software will replace "April" in the PDF with "August", and "2017" with "2026".
Here, it is important to note the correspondence: the 1st line on the left corresponds to the 1st line on the right, and the 2nd line on the left corresponds to the 2nd line on the right. Therefore, if replacing multiple sets of keywords, it is recommended to check line by line to ensure that the find word and replace word for each line are in one-to-one correspondence. Do not reverse the order, otherwise the replacement results may not meet expectations.
The page also shows additional options, such as "Ignore letter case" and "Match whole word only (not part of a word)". These options should be checked or unchecked based on the actual file content. If you only want to replace exact, complete English words, you can typically consider matching the whole word; if the capitalization in the PDF is inconsistent, you can use ignore case as needed. The screenshot demonstrates exact text lookup, so the focus is on accurately inputting the text to find.
Operation Step 4: Continue to Set the Save Location and Start Processing
After completing the keyword settings, click the "Next" button at the bottom of the page. According to the interface workflow, the subsequent steps include "Set Save Location" and "Start Processing". Although the screenshot does not show the specific content of the save location page, it can be reasonably inferred from the process bar that the software will require the user to choose the saving method or directory for the processed files.
It is recommended that when batch replacing PDF keywords, do not directly overwrite the original files, especially for formal documents like contracts, reports, and archived materials. A safer practice is to save the processed PDFs to a new folder, such as a "Replaced Files" or "Output Results" directory. This way, even if a keyword setting is inaccurate, you can return to the original PDF for reprocessing.
After setting the save location, proceed to the "Start Processing" step to initiate the batch task. The software will execute find and replace on each file according to the sequence of PDFs in the list. After processing is complete, open the output files for spot checks to confirm that the keywords have been replaced correctly.
Frequently Asked Questions and Notes
1. Why can't some PDF text be replaced? If the PDF is a scanned copy or an image-based PDF, the page content is essentially an image, not directly recognizable text. Batch find and replace is typically more effective for PDFs with recognizable text. For scanned PDFs, text recognition or conversion processing may be required first.
2. How to avoid misalignment when replacing multiple keywords? It is recommended to have one keyword per line, keeping the line numbers consistent between the left find list and the right replace list. For example, if the 1st line on the left is April, the 1st line on the right should be August; if the 2nd line on the left is 2017, the 2nd line on the right should be 2026.
3. Should I check "Match whole word" when replacing English words? If you only want to replace standalone words, it is advised to use "Match whole word only (not part of a word)" according to the actual situation. This can reduce the risk of mistakenly replacing partial characters within a longer word.
4. Is a backup needed before batch processing? It is recommended to keep the original PDFs. The advantage of batch processing is its speed, but it also means the same rule applies to multiple files. Backing up first or outputting to a new directory can reduce the risk of operational errors.
Summary
Batch finding and replacing keywords in PDF files is suitable for processing recurring content like dates, years, names, numbers, and version numbers. Through HeSoft Doc Batch Tool , users can select "Find and Replace Keywords in PDF" in the PDF tools, import multiple PDFs at once, set the find and replace words, and then batch generate the processing results. Compared to opening PDFs one by one for manual modification, this method is more efficient, more uniform, and more suitable for batch file processing in office scenarios.
If you have a batch of PDFs that need unified keyword modification, it is recommended to prepare the original files and replacement rules first, then follow the steps in this article: select the function, import PDFs, set keywords, set the save location, and start processing. This way, you can delegate repetitive tasks to office software, leaving time for checking results and more important work.