Posted by dellus on Jan 12, 2024; 7:00pm
URL: https://forum.librecad.org/Print-Preview-provides-a-white-page-no-gray-border-tp5724103p5724104.html

Under the message input area there is besides "Post Message" also "Preview Message", so you can check the inserted image and continue writing after that.

The second screen: the green scaling button in Print Preview - do you mean "Fit to page"? Yes, the sheet and the sheet border should be shown then, but you probably wouldn't have a scale of 1:1. Have you set 1:1 after "Fit to page"? It looks as if the drawing is much, much smaller than the sheet.
What happens when in normal drawing mode you do View - AutoZoom? You may have accidently  produced an entity far off. Select -Select All will make this evident.

I have no clue why you are not able to set page orientation to Landscape.

PDF is blank: the drawing might be off the sheet, too small - just a dot, linewidth 0 may be shown as nothing. Also test what happens when you take out "Apply Print Scale to line width" in Print Preview. It is normally not needed.

You can provide your file with "More - Upload a file". Easier to help then.