Erase Content allows the removal of text, vectors, and images from documents. Affected content is permanently removed from the PDF content stream. It does not erase content outside the content stream (for example, it will not erase markups unless they have been flattened). Be aware that doing this on a page containing flattened markups will prevent all markups on the page from being unflattened.
Erase Content cannot be used on a PDF that has been digitally signed or certified.
Erase content does not allow pasting the erased material. See Cut Content to cut and then paste.
Once the file is saved, the erased content is permanently removed.