function MovePages(
const PageIndices: array of Integer;
DestPageIndex : Integer): Boolean;
MovePages reorders pages of THIS document. PageIndices
lists the zero-based indices of the pages to move (any order, any
count up to PageCount); DestPageIndex is
the destination index for the FIRST moved page after the move
completes. Other pages shift around the moved block so the document
length stays the same.
Example: in a 5-page document with pages numbered
[0, 1, 2, 3, 4],
MovePages([2, 3], 0) produces
[2, 3, 0, 1, 4] — pages 2 and 3 are lifted out,
page 0 shifts to position 2 (where page 2 was), page 1 shifts to
position 3, and page 4 stays put.
Döndürür: True on success. Döndürür: False
if any index in PageIndices is out of range, if
DestPageIndex is out of range, or if
PageIndices contains duplicates.
This is the right call for "move selected thumbnails up / down" /
drag-and-drop page reordering in a UI. To copy a subset of
pages from another document, use ImportPagesByIndex; to
delete pages, use DeletePage.
Active. Reordering does not change PageCount.PageNumber may end up pointing at a different page after the move — refresh any UI state that tracks the current page.
// In a 5-page document, move pages 2 and 3 to the start.
// Result: [2, 3, 0, 1, 4]
if not Pdf1.MovePages([2, 3], 0) then
ShowMessage('Invalid indices passed to MovePages');
// Reverse the entire document
var
I: Integer;
Indices: array of Integer;
begin
SetLength(Indices, Pdf1.PageCount);
for I := 0 to High(Indices) do
Indices[I] := High(Indices) - I;
Pdf1.MovePages(Indices, 0);
end;