How to Remove PDF Border in AutoCAD?

To remove or hide the border (frame) around a PDF underlay in AutoCAD, you need to adjust the PDFFRAME system variable.

Here's how:

1. Type PDFFRAME at the AutoCAD command line and press Enter.

2. Enter a value from the options below:

   Value	Description
   0	Hides the PDF underlay frame. The frame will not be displayed or plotted.
   1	Displays and plots the PDF underlay frame.
   2	Displays the PDF underlay frame but does not plot it.

3. To remove the border, set the value to 0. This will hide the frame surrounding your PDF underlay.

Therefore, setting PDFFRAME to 0 is the solution to removing the visible PDF border in AutoCAD.