6. A computer program product for redacting a document, the computer program product comprising: one or more computer-readable storage devices and program instructions stored on at least one of the one or more tangible storage devices, the program instructions comprising: program instructions to receive an unredacted document; program instructions to determine one or more portions of the unredacted document contains sensitive information, wherein the program instructions to determine one or more portions of the unredacted document contains sensitive information comprises program instructions to determine that a pattern for the one or more portions of the unredacted document matches a pattern corresponding to sensitive information; program instructions to apply a redaction method to the one or more portions of the unredacted document containing sensitive information to create a redacted document, wherein the redaction method replaces the one or more portions of the unredacted document containing sensitive information with one or more different pieces of content; and wherein the one or more different pieces of content correlate to a most stringent redaction method selected from a list of redaction methods; program instructions to display the redacted document to a user; program instructions to determine a frustration level of the user, wherein the program instructions to determine the frustration level of the user comprises: program instructions to receive current physiological information pertaining to the user; program instructions to receive historical physiological information pertaining to the user; and program instructions to determine if there is a difference between the received current physiological information pertaining to the user and the received historical physiological information pertaining to the user; based on determining that the frustration level of the user is above a threshold value, program instructions to replace at least one of the one or more different pieces of content with a one or more pieces of content corresponding to a next most stringent redaction method from the list of redaction methods; and program instructions to display the updated redacted document to the user.
7. The computer program product of claim 6 , wherein the physiological information comprises one or more of pulse, blood pressure, facial expressions, brain activity and reading rate.