Process for electronic document redaction

• US 8,456,654 B2
• Filed: 10/14/2005
• Issued: 06/04/2013
• Est. Priority Date: 10/14/2004
• Status: Active Grant

• Current Assignee: Objective Corporation Solutions NZ Limited
• Original Assignee: Onstream Systems Ltd. (Objective Corp. Ltd.)
• Inventors: Kelly, David George, Foster, Brent Russell
• Primary Examiner(s): Tieu, Benny Q
• Assistant Examiner(s): Guillermety, Juan M
• Application Number:
  US11/665,448
• Publication Number:
  US 20080204788A1
• Time in Patent Office: 2,790 Days
• Field of Search: 707/104.1, 707/999.X, 715/513, 715/500, 715/243, 395/800, 358/1.15, 358/1.13, 358/1.9, 380/4
• US Class Current: 358/1.13
• CPC Class Codes: G06T 11/60 Editing figures and text; Combining figures or text

Abstract

A redaction process (10) to enable a user to redact an electronic document on a computer. The redaction process (10) includes the steps of converting a copy of the original electronic document file (14) from its native format into the format of an electronic image file. The user may redact sections of the electronic image file, and save the redacted electronic image file in electronic file format.

Claims

1. A redaction process for redaction of electronic documents, comprising:

i. converting an electronic document file in a native electronic format into an electronic image file in an electronic image file format, the conversion process including;

a) extracting text and text location data directly from the electronic document file, and

b) embedding the text and text location data into the electronic image file;

ii. after said converting step, redacting sections of the electronic image file to produce redacted image sections;

iii. removing at least the embedded text data corresponding to the redacted image sections; and

iv. saving the redacted electronic image file in a redacted file format.

2. The redaction process as claimed in claim 1, wherein the conversion process includes printing the electronic document file to create the electronic image file and wherein the text and text location data is extracted as part of the printing process.

3. The redaction process as claimed in claim 1,

including searching the electronic image file for search terms using the embedded text data, and

wherein the step of redacting sections of the electronic image file includes redacting sections located by this searching.

4. The redaction process as claimed in claim 1, wherein the conversion step utilizes a computer operating system'"'"'s print spooler.

5. The redaction process as claimed in claim 1, wherein the electronic image file format is a tagged image file format.

6. The redaction process as claimed in claim 1, wherein the step of redacting sections of the electronic image file includes applying redaction markings, the redaction markings being translucent or solid markings.

7. The redaction process as claimed in claim 6, wherein the step of redacting sections of the electronic image file includes altering pixel values in the electronic image file corresponding to locations of the redaction markings from their original value to a value of the redaction markings.

8. The redaction process as claimed in claim 1, wherein the redacted file format is the TIFF or PDF format.

9. The redaction process as claimed in claim 1, wherein the saved file in the redacted file format includes redaction markings that cannot be further edited by a user.

10. The redaction process as claimed in claim 1, including, before saving the redacted electronic image file in the redacted file format, saving a redaction review file including redaction markings that can be edited at a later time by a user.

11. The redaction process as claimed in claim 1, including saving an audit copy of the redacted electronic image file, the audit copy indicating the redactions that have been made but allowing the redacted text to be read.

12. A computer programmed to implement a redaction process for redaction of electronic documents, the redaction process including:

i. converting an electronic document file in a native electronic format into an electronic image file in an electronic image file format, the conversion process including;

a) extracting text and text location data directly from the electronic document file, and

b) embedding the text and text location data into the electronic image file;

ii. after said converting step, redacting sections of the electronic image file to produce redacted image sections;

iii. removing at least the embedded text data corresponding to the redacted image sections; and

iv. saving the redacted electronic image file in a redacted file format.

13. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12, the computer further programmed to perform a redaction process including:

v. receiving a scanned electronic image file holding a scanned electronic version of a document in an electronic image file format;

vi. performing an optical character recognition process on the scanned electronic image file, thereby creating electronic text data;

vii. embedding the created text data into the scanned electronic image file; and

viii. performing steps ii) to iv) on the scanned electronic image file.

14. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12, wherein the computer software includes an application software component, a document conversion component, and a redaction software component.

15. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12, wherein the document conversion component includes a redact print driver, redact print monitor, and utilizes a computer operating system'"'"'s print spooler.

16. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12, wherein the conversion process includes printing the electronic document file to create the electronic image file and wherein the text and text location data is extracted as part of the printing process.

17. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12, further including searching the electronic image file for search terms using the embedded text data, and wherein the step of redacting sections of the electronic image file includes redacting sections located by this searching.

18. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12, wherein the electronic image file format is a tagged image file format.

19. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12 wherein the step of redacting sections of the electronic image file includes applying redaction markings, the redaction markings being translucent or solid markings.

20. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 19, wherein the step of redacting sections of the electronic image file includes altering pixel values in the electronic image file corresponding to locations of the redaction markings from their original value to a value of the redaction markings.

21. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12, wherein the redacted file format is the PDF format.

22. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12, wherein the saved file in the redacted file format is an electronic image file including redaction markings that cannot be further edited by a user.

23. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12, including, before saving the redacted electronic image file in a redacted file format, saving a redaction review file including redaction markings that can be edited at a later time by a user.

24. The computer programmed to implement a redaction process for redaction of electronic documents, as claimed in claim 12, including saving an audit copy of the redacted electronic image file, the audit copy indicating the redactions that have been made but allowing the redacted text to be read.