PDFium Component Docs

PageNumber property

Component: TPdf · Unit: PDFium

Read/write 1-based page index of the current page, with 0 reserved for the inactive state

Syntax

property PageNumber: Integer;

Description

Returns or selects the 1-based current page index; assigning 0 unloads the current native page while keeping the document active

Assignments outside 0..PageCount raise EPdfError without changing the current page

Page replacement is transactional: if PDFium cannot load the requested page, the previous native page and its cached page data remain active

Remarks

All page-scoped properties reflect the selected page and refresh after a successful assignment
When Active is False, the property returns 0
The PDF rotation is independent of any visual rotation applied by TPdfView

Example

if Pdf1.Active then
Memo1.Lines.Add('PageNumber = ' + VarToStr(Pdf1.PageNumber));

See Also

Page, PageCount, PageLabel