Reproduction
- Open a Markdown document in split view.
- Export it with the native Export as PDF command.
- Compare the resulting PDF with the same document exported from preview-only view.
Actual behavior
The viewer pane retains its inline interactive flex ratio while print CSS is active. The pane therefore occupies only the split-view fraction of the page even though the print rules set its width to 100%. Long documents become unnecessarily narrow and can create avoidable heading orphans.
Expected behavior
PDF export should use the full printable page width regardless of the interactive split ratio.
Scope
A minimal print-only rule can clear the viewer pane's flex value. It does not change the renderer, print dialog, persisted preview width, or normal split-view layout.
Validation
A macOS release bundle exported a 20-section fixture from split view to a three-page A4 PDF. The corrected layout used the full printable width and kept every heading with its following paragraph.
Reproduction
Actual behavior
The viewer pane retains its inline interactive
flexratio while print CSS is active. The pane therefore occupies only the split-view fraction of the page even though the print rules set its width to100%. Long documents become unnecessarily narrow and can create avoidable heading orphans.Expected behavior
PDF export should use the full printable page width regardless of the interactive split ratio.
Scope
A minimal print-only rule can clear the viewer pane's flex value. It does not change the renderer, print dialog, persisted preview width, or normal split-view layout.
Validation
A macOS release bundle exported a 20-section fixture from split view to a three-page A4 PDF. The corrected layout used the full printable width and kept every heading with its following paragraph.