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nanoCAD supports DWF, DWFX, PDF files insertion as underlays. Editing commands like Copy, Move, Rotate, Mirror, Scale, and others are available for underlays.

Properties dialog box displays some underlay settings: Contrast, Fade, Adjust colors for background, monochrome:

CAD drafting Underlays 0

Underlay in the drawing has one grid in the bottom left corner. Use it to move the underlay.

CAD software Underlays 1

Underlay has a frame that shows max underlay size. Use PDFFRAME system variable to show (1) or hide (0) a frame.

It is possible to set the display border to show only the cropped part of the background. Trimming is performed with the UNDERLAYCLIP command.

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