PDF format typically offers excellent cross-platform display effects, but editing content is less convenient than documents that allow typesetting. When you need to batch delete multiple similar keyword expressions and there are many documents, ordinary find-and-replace methods often fail to meet the requirements. In such cases, we can use fuzzy matching methods to identify and delete text segments with similar text or numbers, effectively improving our document processing efficiency at work.
Next, we will introduce how to quickly use fuzzy matching to batch delete similar text and numbers in PDFs, making PDF file cleanup tasks effortless. Let's try it together!
When do you need to fuzzy delete text, numbers, etc. in PDFs?
Cleaning sensitive data
When companies or institutions publicly release or share PDF files that contain users' personal information such as names, addresses, ID numbers, or phone numbers, fuzzy deletion is necessary to prevent misuse or leakage.
Hiding confidential information
When companies release PDF contracts, quotations, or product documents containing information like prices, profits, or partner details, fuzzy deletion of specific text or numbers can prevent competitors from obtaining useful content and ensure the documents are only usable by designated recipients.
Protecting privacy content
When processing old PDF archive files that contain old employee salary records, contract numbers, or some expired policies, fuzzy deletion of some sensitive content is often very necessary to maintain the usability of the archives.
Preview of the effect of batch deleting multiple numbers and IDs in PDFs
Before processing:

After processing:

Steps to batch delete keywords in PDFs using fuzzy matching
1. Open 【 HeSoft Doc Batch Tool 】, select 【PDF Tools】 - 【Find and Replace Keywords in PDF】.

2. Choose a method from 【Add Files】 or 【Import Files from Folder】 to add the PDF files from which you want to delete keywords. You can also drag files directly into the import area below, then click Next.

3. In the options settings interface, select 【Use formula for fuzzy text search】. Enter the corresponding regular expression formula in the keyword list below (if you don't know it, you can ask AI to generate it using the Microsoft .Net framework). Leave the replacement keyword list below blank, then click Next again. Then, in the save interface, click Browse and select the save location for the processed files.

4. After the processing is complete, click the red path to open the folder and view the successfully processed files.
