Posted by LordOfBikes on Jul 14, 2023; 6:18am
URL: https://forum.librecad.org/Transform-Image-tp5723032p5723035.html

For the linked image Perspective is the only tool needed.
With 4 guiding lines the result is a perfect rectangle.
And a 90° rotation can be applied by Image/Transform menu.
Guiding lines also can have any angle, e.g. if an alignment with the content is needed.

Other images, from greater distance, may also have kind of a polar/barrel distortion, depending on the camera lens.
This can probably be fixed too, with other tools and a bit more efforts. But the question is, how exact the image has to be.
Usually a couple of remarkable points are enough to create a true to scale drawing from an image.