ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,554,926, issued on Feb. 17, was assigned to KDAN MOBILE SOFTWARE LTD. (Tainan, Taiwan).

"Method, device, computer equipment and storage medium for determining text blocks of PDF file" was invented by Sheng-Jun Lu (Tainan, Taiwan), Zhi-Peng Luo (Tainan, Taiwan), Shuai Wang (Tainan, Taiwan), Po-Chou Su (Tainan, Taiwan) and Wen-Wei Lin (Tainan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "There is provided a method for determining text blocks of a PDF text, including: acquiring information of characters of the PDF text; performing an initial division according to gap outliers of the PDF text in a transverse direction and a longitudinal direction, ...