★How to adjust the graphic size of imported PDF to 1:1

Issue:

After importing a PDF into ZWCAD by the PDFIMPORT command, it may be scaled by a certain factor, making it difficult to determine its true scale. How to adjust it to the scale of 1:1?

Solution:

1. Pick the length of a certain figure from the graphic, and draw a straight line representing its actual length.

2. Click on the menu Modify→3D Operations→Align (ALIGN command), select the imported PDF graphic, and align them with the points to scale the imported PDF objects to make the graphic match the actual size. The operation steps are as follows for reference.
   Command: ALIGN
   Select objects: 
   Specify first source point: 
   Specify first destination point: 
   Specify second source point: 
   Specify second destination point: 
   Specify third source point or <continue>: 
   Scale objects based on alignment points? [Yes/No] <No>: y