LibreOffice 6.0.7.3 form sizes are not being saved.
Hello,
There is currently an open item on this - tdf#115619
You can, with a macro, set a form to a specific size (and position if wanted) when you open a form. A sample Base file and the necessary code are on the Dutch forum on this post → are the properties width, heigth, xpos, ypos of a form in base accessible via basic?