PDF opens in wrong orientation (portrait instead of landscape) when printed from BricsCAD via Adobe

Hi all,

I'm using Adobe Acrobat Pro (64-bit) and I'm printing architectural layout drawings from BricsCAD using the Adobe PDF printer with the following setup:

• Paper size: A3

• Orientation: Landscape

• Plot area: Layout

• Scaling: 1:1

• Plot style: CTB

• Printer: Adobe PDF.pc3

In BricsCAD, the Print Preview displays everything correctly in landscape orientation, exactly as expected.

However, after creating the PDF using the Adobe PDF printer, when I open it in Adobe Acrobat, the page appears in portrait orientation, meaning the drawing content is rotated 90°.

I’ve already tried:

• Manually adjusting settings in the .pc3 configuration

• Creating a custom "Adobe PDF Landscape.pc3"

• Verifying page size matches exactly (297.00 x 420.00 mm)

• Changing plot area and orientation multiple times

• Disabling “Plot upside down” and other options

None of these attempts solved the issue. The drawing content itself is technically correct, but Acrobat (or the PDF metadata) forces it to open in portrait mode.

Important: When I use other PDF drivers such as Microsoft Print to PDF or PDF24, the resulting PDF opens in the correct landscape orientation. This suggests the issue lies with the Adobe PDF printer driver, which might not embed proper rotation metadata into the PDF file.

Given the cost of Acrobat Pro, this is quite frustrating for such a basic workflow.
Is there any way to ensure the PDF opens with the correct orientation when printed via the Adobe PDF driver?

Thanks in advance for your help!