1. A method for identifying a table in a digital file, comprising: extracting lines from a layout of the digital file, the lines comprising horizontal lines and vertical lines; identifying intersected line groups, each intersected line group comprising a horizontal line of the extracted horizontal lines and a vertical line of the extracted vertical lines, the horizontal line and the vertical line intersecting with each other; and determining whether the number of intersected line groups is larger than a first threshold, and if yes, identifying an area in which the intersected line groups are located as a table area; if no: performing vertical projection on characters in the area; and identifying the area as a table area based on a result of the vertical projection.