I'm sending the circuit drawing for the cryostat controller to our vendor for PCB layout, but the PDF contains serial …
Open the PDF you want to redact in Adobe Acrobat Pro.
Go to Tools and select Redact.
Click Find and Remove Text.
Enter the word, phrase, or pattern you want to search for in the search box.
Choose the location to search (e.g., current document or all PDFs in a folder), then click Search.
Review the search results and check all instances you want to redact, or use Select All to mark every occurrence.
Click Mark for Redaction to mark the selected instances.
Click Apply Redactions and confirm when prompted to permanently remove the marked content.
CautionRedactions are permanent and cannot be undone after saving.
Best practiceYou can customize the appearance of redaction marks before applying them by adjusting settings in the Redact tool.
Best practiceAlways double-check your search term and results to ensure all sensitive information is covered, especially with patterns like SSNs.
Save the redacted PDF with a new file name.
You can use the Find Text and Redact feature to quickly locate and mark all instances of sensitive words or patterns for redaction throughout your document.
This runs in the Acrobat app - there is no separate API for this task.
Drawing a simple black rectangle over text only hides it visually. The text is still underneath and can be copied or searched. Redact a PDF permanently removes the text or image. It replaces the content with a black mark, making it impossible to recover the original information.
Redaction only removes visible content like text or images. However, PDFs can hold hidden information called metadata, comments, or even previous versions. Sanitizing removes all this hidden data. This ensures that no sensitive serial numbers or other private details are accidentally left behind in the document's background.
Pattern-based auto-redaction is a feature that automatically finds and redacts information that follows a specific pattern, like serial numbers, Social Security Numbers, or credit card numbers. You tell Acrobat what the pattern looks like (e.g., three letters followed by five numbers), and it scans the entire document to find and mark all matching items for redaction. This is very useful for large documents with many similar pieces of sensitive data.
Yes, you can redact serial numbers in a scanned PDF. First, Acrobat will need to perform 'Optical Character Recognition' (OCR) on the document. This process turns the image of text into selectable text. Once the OCR is done, you can then use the 'Redact text and images' tool to select and permanently remove the serial numbers, just like with a regular PDF.