US 12,332,978 B2
Methods and systems for watermarking documents
Sujatha S Iyer, Guduvanchery (IN); Balachandar S, Guduvanchery (IN); Ramprakash Ramamoorthy, Singaperumal Koil (IN); and Shailesh Kumar Davey, Potheri (IN)
Assigned to Zoho Corporation Private Limited, Kanchipuram District (IN)
Filed by Zoho Corporation Private Limited, Kanchipuram District (IN)
Filed on Oct. 20, 2022, as Appl. No. 17/969,683.
Claims priority of provisional application 63/313,772, filed on Feb. 25, 2022.
Claims priority of application No. 202141058225 (IN), filed on Dec. 14, 2021.
Prior Publication US 2023/0185886 A1, Jun. 15, 2023
Int. Cl. G06F 21/16 (2013.01); G06T 3/40 (2024.01); G06V 30/14 (2022.01); G06V 30/19 (2022.01); G06F 21/10 (2013.01)
CPC G06F 21/16 (2013.01) [G06T 3/40 (2013.01); G06V 30/1448 (2022.01); G06V 30/19 (2022.01); G06F 21/1063 (2023.08)] 19 Claims
OG exemplary drawing
 
1. A method for encoding a user identifier in words of a document, the method comprising:
capturing original images of the words of the document, each of the original images having respective renderable dimensions encompassing a word area;
changing the renderable dimensions of each of the word areas to create a scaled area corresponding to each of the word areas, the changed renderable dimensions of the scaled areas encoding the user identifier into the scaled areas; and
replacing or covering the original images of the words with the corresponding scaled areas.