Dessiner la contenue d'une page PDF

Bonjour
Voici comment dessiner la contenue d'une page PDF sous Android:
private void drawPage(PdfDocument.Page page) {
Canvas canvas = page.getCanvas();

// units are in points (1/72 of an inch)
int titleBaseLine = 72;
int leftMargin = 54;

Paint paint = new Paint();
paint.setColor(Color.BLACK);
paint.setTextSize(36);
canvas.drawText("Test Title", leftMargin, titleBaseLine, paint);

paint.setTextSize(11);
canvas.drawText("Test paragraph", leftMargin, titleBaseLine + 25, paint);

paint.setColor(Color.BLUE);
canvas.drawRect(100, 100, 172, 172, paint);
}