Methods and systems for adding one or more security patterns in documents

A multi-function device for adding one or more security patterns in a document submitted at the multi-function device, the multi-function device comprising:

• a receiver for receiving the document at the multi-function device from a user, wherein the document comprises at least textual content;
• a controller for obtaining stamping information, wherein the stamping information comprises at least one of:
• portion information, edge filtering criteria, and pattern information;
• an edge detection module for performing a pre-defined operation to detect edges of the at least textual content;
• a stamping module for:
• upon detection, identifying one or more edges of the at least textual content on which the one or more security patterns are to be added, based on the stamping information;
• and
• adding the one or more security patterns to the one or more identified edges of the at least textual content, thereby resulting in a secure document.

A method for adding one or more security patterns in a document submitted at a multi-function device, the method comprising:

• receiving the document at the multi-function device from a user, wherein the document comprises at least textual content;
• obtaining stamping information, wherein the stamping information comprises at least one of:
• an edge angle, an edge size, and an edge intense;
• extracting a portion of the document having the at least textual content;
• performing a pre-defined operation to detect edges of the at least textual content;
• identifying one or more text edges of the at least one textual content matching the edge angle;
• further filtering one or more text edges of the identified one or more text edges matching the edge size;
• furthermore filtering one or more text edges of the filtered one or more text edges matching the edge intense;
• and
• adding the one or more security patterns around the one or more filtered text edges of the at least textual content, thereby resulting in a stamped document.