How a PageLayout arranges pages: the mode, the cover page, the gaps, the padding and the user's rotation.
public sealed class PageLayoutOptions
ISO 32000-2 §7.7.2, Table 29 (PageLayout; For(PdfPageLayout)) and §7.7.3.3 (Rotate). Spec #33 story 54
(viewer capability 14). Mutable and fluent like the other options objects: With* sets a value. A layout copies the options
when it is created, so changing them afterwards does not affect it. Gaps and padding are in points, so they scale with the zoom and
a layout is the same at every zoom.
kind:method, kind:property, kind:ctor. Press Esc to clear.DefaultSpacingThe default Gap and Padding: 8 points.GapGets or sets the space between spreads and between the two pages of a spread, in points (DefaultSpacing by default).ModeGets or sets the arrangement (Continuous by default).PaddingGets or sets the space around the content, in points (DefaultSpacing by default).RotationGets or sets the rotation the user adds to every page's own Rotate, in degrees clockwise: a multiple of 90, stored as 0, 90, 180 or 270 (Rotation).ShowCoverGets or sets whether the first page stands alone on the right as a cover in the two-up modes, so even-numbered pages (1-based) are on the left (TwoColumnRight, TwoPageRight). false by default.For(PdfPageLayout)Returns options for a document's PageLayout entry (ISO 32000-2 §7.7.2, Table 29).WithGap(Double)Sets Gap.