Removing sensitive data from PDFs
You may want to remove sensitive content or private information from the PDF file before sending or sharing. Using the Redaction tool you can permanently remove visible sensitive images or text from a PDF file.
If you do not want others to learn certain information when they receive the file, you can use the Inspect Document tool to permanently remove the selected types of contents from a PDF document or hidden content.
For more information, see:
Redact sensitive content
Find and remove hidden content