When the same dates, names, numbers, or fixed expressions need to be unified and modified across multiple PDF files, opening each file to search and replace is time-consuming and prone to omissions. This article takes HeSoft Doc Batch Tool as an example to demonstrate how to use the "Find and Replace Keywords in PDFs" feature to import multiple PDFs at once, set the keywords to find and their replacements, and batch-generate processed files, suitable for batch office scenarios such as contracts, reports, notices, and document archiving.
In daily office work, PDF files are often used to publish official reports, contracts, notices, manuals, training materials, and more. The problem is that when certain fixed information in these files needs to be uniformly adjusted—for example, changing the date from April to August, the year from 2017 to 2026, or when company names, project numbers, contacts, or department names change—manually opening PDFs one by one to find and replace is not only inefficient but also prone to omissions and errors.
This article addresses the typical office problem of "batch finding and replacing keywords across many PDF files." Using screenshots, we will demonstrate with the office software " HeSoft Doc Batch Tool " how to add multiple PDF files to a task list at once, then set search words and replacement words, and finally batch process to generate result files. This workflow is more suitable for batch file processing, reducing repetitive tasks and is especially applicable to scenarios involving the maintenance of tens or hundreds of PDF documents simultaneously.
Applicable Scenarios: When is Batch Replacement of PDF Keywords Needed
Batch finding and replacing keywords in PDF files is suitable for all scenarios where "the same text exists across multiple files and requires unified modification." Compared to file-by-file processing, batch processing software can consolidate repetitive actions into a single setup, significantly reducing manual effort.
1. Batch Modifying Report Dates, Years, or Version Numbers
The example in the screenshots is a typical date update scenario: the original PDF contains "April 13, 2017," which becomes "August 13, 2026" after processing. If there are 4, 40, or even more similar reports, and each needs month and year changes, manual processing would be very tedious. Through batch find and replace, you can replace April with August and 2017 with 2026 respectively.
2. Batch Updating Company Names, Project Names, or Department Names
In corporate materials, bidding documents, and external explanatory documents, changes to company names, brand names, or project names often occur. As long as the text in the PDF is recognizable as text, it can be uniformly modified using the find and replace function.
3. Batch Correcting Fixed Erroneous Statements in Documents
For example, if a product model is written incorrectly, a term needs to be standardized, or a contact phone number needs updating, these can all be done through batch replacement of PDF keywords. It is suitable not only for English keywords but also for Chinese keywords, numbers, identifiers, and other common text content.
Result Preview: PDF Content Changes Before and After Processing
Before the formal operation, let's look at the processing objects and final results to better understand what problem this function actually solves.
Before Processing: Multiple PDF Files Awaiting Unified Modification
Before processing, there are multiple PDF files in the folder, such as 1.pdf, 2.pdf, 3.pdf, and 4.pdf. They may all contain the same or similar keywords that need to be uniformly found and replaced.
Opening one of the PDFs shows that the date position on the page contains "April 13, 2017." The screenshot highlights the two keywords that need modification with a red box: April and 2017. That is, we need to batch replace these two texts in the PDF file content with new content.
After Processing: Keywords Have Been Uniformly Replaced
After processing, opening the generated PDF shows that the original "April" has become "August," and the original "2017" has become "2026." The intervening date "13," remains unchanged, indicating that the software only replaces the set keywords and does not modify unrelated content together.
This result is very important for batch office tasks: users only need to set the search words and replacement words once, and the text replacement can be performed on multiple PDF files according to the same rules, thereby avoiding repeated opening, searching, and saving.
Operating Steps: Using HeSoft Doc Batch Tool to Batch Find and Replace PDF Keywords
Following the order of the screenshots, we will explain the complete process, from selecting the function, importing files, setting keywords, to starting the processing. The operating interface comes from " HeSoft Doc Batch Tool ," a type of batch processing software designed for office scenarios, with its key value being the automation of repetitive actions in file processing.
Step One: Enter PDF Tools and Select "Find and Replace Keywords in PDF"
After opening HeSoft Doc Batch Tool , select "PDF Tools" in the left function category. In the tool list, you can see multiple PDF-related functions, such as PDF Add Watermark, PDF to Word, PDF Delete Pages, etc. The function to use this time is the first one: "Find and Replace Keywords in PDF."
The purpose of selecting this function is to enter the processing wizard specifically for PDF content text find and replace. Once entered, the software will guide the user step-by-step through selecting files, setting processing options, then setting the save location, and starting the process.
Step Two: Add the PDF Files to Be Batch Processed
After entering the function page, you can see buttons like "Add File," "Import Files from Folder," "Clear," and "More" at the top of the interface. For a small number of PDFs, you can click "Add File" to select them individually; if an entire folder of PDFs needs processing, you can use "Import Files from Folder," which is more suitable for batch office work.
The screenshot shows that 4 PDF files have been imported, named 1.pdf, 2.pdf, 3.pdf, and 4.pdf. The list also displays information such as path, extension, creation time, and modification time, allowing users to confirm that the files are added correctly. The "Summary" area at the bottom shows a record count of 4, indicating there are 4 PDFs pending processing in the current task.
The expected result of this step is that all PDFs requiring batch keyword replacement appear in the task list. If files not needing processing are found to have been imported, they can be removed via the action button in the corresponding row; if imported incorrectly, you can also use "Clear" to re-add.
Step Three: Proceed to the Next Step, Set Search Method and Replacement Content
After confirming the file list is correct, click "Next" at the bottom to enter "Set Processing Options." On this page, you need to focus on setting the search method, the list of keywords to find, and the list of replacement keywords.
The screenshot shows "Search Method" is set to "Exact Text Search." This means the software will perform precise matching based on the text content entered by the user. You can also see the option "Use Formula for Fuzzy Text Search" on the interface, but the current example uses exact search, which is more suitable for batch replacement of clear text like dates, numbers, and names.
In the "List of Keywords to Find," the example has entered two lines: the first line is April, the second line is 2017. In the "List of Replacement Keywords" on the right, two lines are correspondingly entered: the first line is August, the second line is 2026. This way, the software will execute replacements based on the line-by-line correspondence during processing: replace April with August, and 2017 with 2026.
It is important to note that the order of the lists on the left and right sides should be kept corresponding. That is, line 1 on the left corresponds to line 1 on the right, line 2 on the left corresponds to line 2 on the right. To batch replace more keywords, you can continue adding lines, but ensure that the search content and replacement content for each line correspond one-to-one.
Step Four: Set Additional Options as Needed
On the settings page, you can also see additional options like "Ignore letter case" and "Match complete word instead of part of a word." Whether to check these depends on actual needs.
If English content has inconsistent casing, such as the simultaneous presence of April, APRIL, and april, you might consider using the ignore case option; if you only want to replace a complete word and not partial characters within a word, you can consider "Match complete word instead of part of a word." In the example, the red boxes emphasize precise text search and the correspondence between the two keyword groups, so users can complete this date replacement task by following the example setup.
Step Five: Set Save Location and Start Processing
As can be seen from the process progress at the top of the page, the subsequent steps are "Set Save Location" and "Start Processing." After completing the keyword settings, continue clicking "Next," follow the wizard to set the save location for the processed files, and then enter the step to start processing.
The purpose of setting the save location is to avoid confusing the processed files with the original files. For important PDFs, it is recommended to save to a new output folder and perform spot checks after processing is complete. Entering the final step, click Start Processing, and the software will batch execute find and replace for the multiple PDF files in the task list according to the previously set rules.
After processing is complete, you can open the PDFs in the output directory for verification. Combined with the previous result images, the original April and 2017 have been replaced with August and 2026, indicating that the batch replacement rules have taken effect.
Common Questions and Considerations
1. Why might some PDFs be unable to have their text replaced?
The content types in PDF files are not entirely consistent. Some text in PDFs is actual text, while others might be scanned images or pages composed of images. Batch find and replace usually works on recognizable text content. If a PDF page is essentially an image, a normal text search might not find the corresponding keywords. For such files, it is advisable to first test with a small sample.
2. When replacing multiple keywords, how to avoid correspondence errors?
The most critical thing is to keep the line numbers consistent between the left and right lists. The search word on a specific line on the left corresponds to the replacement word on the same line on the right. For example, if line 1 on the left is April, line 1 on the right should be August; if line 2 on the left is 2017, line 2 on the right should be 2026. After setting up, it is recommended to double-check before clicking Next.
3. Is it necessary to back up original files before batch processing?
Backing up is recommended. Although batch processing can significantly improve efficiency, PDFs are often official documents. It is advisable to save the processing results to a new folder and keep the original files as a backup. This way, even if the replacement rules are found to be unsuitable, you can readjust and process again.
4. Can many PDFs be processed simultaneously?
From the interface, it can be seen that this function supports adding multiple PDFs to the list and processing them uniformly. The actual number of files processed can be arranged based on computer performance, file size, and task complexity. For a very large number of files, it is recommended to first test the rules with a few samples and, after confirming correctness, batch import all files.
Summary: Reduce Time Spent on Repetitive PDF Modifications Using Batch Processing
Batch finding and replacing keywords in PDF files essentially transforms the repetitive work of "opening, searching, modifying, and saving one by one" into a one-time file import, one-time rule setting, and one-time output of results. For users who need to maintain a large number of PDF reports, contracts, materials, or notices, this type of office software can significantly improve processing efficiency and reduce the risk of omissions.
If you are working with dates, years, names, numbers, or fixed statements across multiple PDF files, it is recommended to use the "Find and Replace Keywords in PDF" function in HeSoft Doc Batch Tool . Testing the replacement rules with a small number of files first, then batch processing all files, is a more reliable and efficient approach.