Hi Paolo,
Thank you for your interest in Syncfusion products.
You can specify padding for all cells in PdfLightTable or PdfGrid using the following code snippet:
// Using PdfLightTable
pdfLightTable.Style.CellPadding = 4;
// Using PdfGrid
// Padding will be applied for all four sides of cells in PdfGrid.
pdfGrid.Style.CellPadding.All = 0.3f;
// Padding will be applied only at the top of all cells in PdfGrid.
pdfGrid.Style.CellPadding.Top = 0.3f;
However, it is not possible to set different padding for each cells. Please let us know if you have any questions.
Regards
Geetha