SetSpacingLine
Sets the paragraph line spacing. If the value of the sLineRule parameter is either "atLeast" or "exact", then the value of nLine will be interpreted as twentieths of a point. If the value of the sLineRule parameter is "auto", then the value of the nLine parameter will be interpreted as 240ths of a line.
Inherited from ApiParaPr.SetSpacingLine.
Example
Adjust the spacing between lines of text in a PDF.
// How do I change the line spacing in a PDF?
// Modify the distance between text lines in a PDF.
const doc = Api.GetDocument();
const page = doc.GetPage(0);
const gs1 = Api.CreateGradientStop(Api.RGB(255, 213, 191), 0);
const gs2 = Api.CreateGradientStop(Api.RGB(255, 111, 61), 100000);
const fill = Api.CreateRadialGradientFill([gs1, gs2]);
const stroke = Api.CreateStroke(0, Api.CreateNoFill());
const shape = Api.CreateShape("flowChartMagneticTape", 150 * 36000, 65 * 36000, fill, stroke);
shape.SetPosition(608400, 1267200);
const docContent = shape.GetContent();
const paragraph = docContent.GetElement(0);
const paraPr = paragraph.GetParaPr();
paraPr.SetSpacingLine(3 * 240, "auto");
paragraph.AddText("Paragraph 1. Spacing: 3 times of a common paragraph line spacing.");
paragraph.AddLineBreak();
paragraph.AddText("These sentences are used to add lines for demonstrative purposes. ");
paragraph.AddText("These sentences are used to add lines for demonstrative purposes. ");
paragraph.AddText("These sentences are used to add lines for demonstrative purposes. ");
page.AddObject(shape);