PDF 1.7 - How exactly does the CTM (Current Transformation Matrix) work?
问题 After reading the Adobe PDF 1.7 (ISO 32000-1:2008) specification, I'm still having trouble understanding how to properly create my transformation matrix. The specification in section 4.2/4.3 state the following: • Translations are specified as [ 1 0 0 1 tx ty ], where tx and ty are the distances to translate the origin of the coordinate system in the horizontal and vertical dimensions, respectively. • Scaling is obtained by [ sx 0 0 sy 0 0 ]. This scales the coordinates so that 1 unit in the