A PDF is not always a vector file.
It depends on what software it was created with.
Archicad 18 now has the ability to explode a PDF and if it was based on a vector file you will get vector elements you can edit.
Simply place the PDF with the Drawing tool in your plan and then select and explode.
Barry.
One of the forum moderators.
Versions 6.5 to 27
Dell XPS- i7-6700 @ 3.4Ghz, 16GB ram, GeForce GTX 960 (2GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11