The issue at hand is that sensitive financial information in a PDF document must be protected before the document is shared. This is about a specific need to modify the content in such a way that certain details are obscured and thus protected from unauthorized access. The main problem is finding an efficient and reliable method for modifying the PDF file without affecting the rest of the content. It is important that this method is precisely applied to the selected parts of the document and ensures that the redacted information cannot be restored. Finally, the tool must be easy to use and must not have any restrictions on the number of uses.

The online tool 'PDF Redaction' by PDF24 is the ideal solution for the problem of securing sensitive information in a PDF document. Users can use this tool to accurately redact parts of a PDF file to obscure confidential financial information before the document is shared. The tool uses an effective redaction technique which ensures that once redacted, information cannot be restored. Meanwhile, the unredacted remainder of the content remains unchanged. The application is very user-friendly and can be used as often as desired without any restrictions. It thus offers a reliable and efficient way to protect sensitive details in PDFs. This allows confidentiality to be maintained even when sharing documents.