Add some documentation

src/SignaturePad.Android/SignaturePadCanvasView.cs

@@ -75,10 +75,14 @@ public float StrokeWidth
 				{
 					stroke.Width = value;
 				}
+
 				inkPresenter.Invalidate ();
 			}
 		}
 
+		/// <summary>
+		/// Clear the canvas and invoke <see cref="Cleared"/> event
+		/// </summary>
 		public void Clear ()
 		{
 			inkPresenter.Clear ();

src/SignaturePad.Android/SignaturePadView.cs

@@ -94,13 +94,19 @@ private void Initialize (IAttributeSet attrs)
 		}
 
 		public SignaturePadCanvasView SignaturePadCanvas { get; private set; }
-
+		
 		public View SignatureLine { get; private set; }
 
+		/// <summary>
+		/// TextView which write text below the separator line
+		/// </summary>
 		public TextView Caption { get; private set; }
 
+		/// <summary>
+		/// TextView which write text aboce the separator line
+		/// </summary>
 		public TextView SignaturePrompt { get; private set; }
-
+		
 		public TextView ClearLabel { get; private set; }
 
 		[Obsolete ("Set the background instead.")]

src/SignaturePad.Shared/SignaturePadCanvasView.cs

@@ -44,8 +44,14 @@ partial class SignaturePadCanvasView
 
 		public event EventHandler Cleared;
 
+		/// <summary>
+		/// Check if there is any stoke.
+		/// </summary>
 		public bool IsBlank => inkPresenter == null ? true : inkPresenter.GetStrokes ().Count == 0;
 
+		/// <summary>
+		/// Get currents points. A new line of points start with coordinate (0,0)
+		/// </summary>
 		public NativePoint[] Points
 		{
 			get
@@ -63,6 +69,9 @@ public NativePoint[] Points
 			}
 		}
 
+		/// <summary>
+		/// Get currents strokes represented by an array of array of points.
+		/// </summary>
 		public NativePoint[][] Strokes
 		{
 			get
@@ -77,6 +86,12 @@ public NativePoint[][] Strokes
 			}
 		}
 
+		/// <summary>
+		/// Get a rect containing the signature.
+		/// Some padding can be add to a max from bounds of canvas.
+		/// </summary>
+		/// <param name="padding">Padding added to the signature.</param>
+		/// <returns>The rect containing the signature with some padding.</returns>
 		public NativeRect GetSignatureBounds (float padding = 5f)
 		{
 			if (IsBlank)
@@ -436,6 +451,11 @@ private bool GetImageConstructionArguments (ImageConstructionSettings settings,
 			return true;
 		}
 
+		/// <summary>
+		/// Allow the user to import strokes represented by an array of an array of points.
+		/// Strokes are used to draw a signature in the view after clearing it.
+		/// </summary>
+		/// <param name="loadedStrokes">Array of array of points. Each array of points represent a line.</param>
 		public void LoadStrokes (NativePoint[][] loadedStrokes)
 		{
 			// clear any existing paths or points.

src/SignaturePad.Shared/SignaturePadView.cs

@@ -51,8 +51,15 @@ partial class SignaturePadView
 		private static readonly NativeColor SignaturePadLightColor = Windows.UI.Colors.White;
 #endif
 
+
+		/// <summary>
+		/// Get currents strokes from the canvas. Strokes are represented by an array of array of points.
+		/// </summary>
 		public NativePoint[][] Strokes => SignaturePadCanvas.Strokes;
 
+		/// <summary>
+		/// Get currents points from the canvas. A new line of points start with coordinate (0,0)
+		/// </summary>
 		public NativePoint[] Points => SignaturePadCanvas.Points;
 
 		public bool IsBlank => SignaturePadCanvas?.IsBlank ?? true;
@@ -61,20 +68,32 @@ partial class SignaturePadView
 
 		public event EventHandler Cleared;
 
+		/// <summary>
+		/// Clear the canvas and invoke <see cref="Cleared"/> event
+		/// </summary>
 		public void Clear ()
 		{
 			SignaturePadCanvas.Clear ();
 
 			UpdateUi ();
 		}
 
+		/// <summary>
+		/// Allow the user to import an array of points to be used to draw a signature in the view, with new
+		/// lines indicated by a { 0, 0 } point in the array.
+		/// <param name="loadedPoints"></param>
 		public void LoadPoints (NativePoint[] points)
 		{
 			SignaturePadCanvas.LoadPoints (points);
 
 			UpdateUi ();
 		}
 
+		/// <summary>
+		/// Allow the user to import strokes represented by an array of an array of points.
+		/// Strokes are used to draw a signature in the view after clearing it.
+		/// </summary>
+		/// <param name="loadedStrokes">Array of array of points. Each array of points represent a line.</param>
 		public void LoadStrokes (NativePoint[][] strokes)
 		{
 			SignaturePadCanvas.LoadStrokes (strokes);