I have several PDFs which I need to delete text and images from. How can I completely delete this information? It's highly critical that people cannot examine this document and find the deleted data.
Duff Johnson
Deleting content from the page is called "redaction". To redact natively in a PDF (ie, without reducing the whole page to an image first), you have two basic choices.
Adobe's Acrobat Professional since versions 8 includes a Redaction feature.
My company, Appligent Document Solutions, offers a plugin for Acrobat Standard and Professional called Redax. Redax was the first PDF redaction solution - it's been available since the 1990s and it's generally considered the definitive PDF redaction software.
In either case, the content that you redact is really, permanently deleted from the document.
Duff Johnson, Appligent Document Solutions http://www.appligent.com
The term used for completely deleting text, images, etc, from a PDF is redaction.