pdf 坐标(坐标纸坐标定位位置如何算？)

pdf coordinate, also called pdf point, referes to a specific numerical description of spot-locates, commonly used in graphical interactive page layout software for making documents in adobe portable document format (pdf).
the coordinate of points that an objects on the pdf grid occupies can be total of four bits x,y,w and h. x represents the coordinates from the east to the west side, y represents the coordinates from the south to the north side, w represents the lines width and most importantly is the lines length h in depth. just readjusting the total four numerical bits one can easily locate the point that object needs to reset on the page layout.
besides the absolute coordinate such as formats listed above, there is also the relative coordinate that elongates more versatility and time-saving for producing mass decument. as for the relative coordinate the idea does not set shapes in the beganing of pdf grid but the offset of them from a certain existing shape. worries from manually setting every point in hundred or thousand pages are all sorted out with a swipe of computer programing once document template is set up.
you can see from the situations stated above that pdf is indeed an essential format nowadays we use for communication and data exchange purposes, an complicated but effective coordinate system had been applied by major pdf layouts software manufacturers in order to facilitate people to create a breeze documents.

pdf坐标定位位置如何算

pdf坐标定位位置的计算方法是：首先要确定pdf中两个点的坐标；其次根据横坐标和纵坐标之间的关系来计算要定位的位置；最后根据实际应用需求等数据来算出期望的坐标。

坐标纸pdf

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