Updated READMEs and code in XObjects, watermarks and backgrounds group

Author: Bobrovsky

Samples/XObjects, watermarks and backgrounds/RemoveXObjectsWatermarks/C#/RemoveXObjectsWatermarks.cs

@@ -20,7 +20,7 @@ public static void Main()
             {
                 foreach (PdfPage page in pdf.Pages)
                 {
-                    // remove first XObject (in this case it's a watermark)
+                    // Remove the first XObject. Here, it's a watermark.
                     page.XObjects.RemoveAt(0);
                 }
 

Samples/XObjects, watermarks and backgrounds/RemoveXObjectsWatermarks/README.md

@@ -1,6 +1,14 @@
-# Remove XObjects
-This sample shows how to remove XObjects (often used for watermarks and backgrounds) from PDF document pages. 
+# Remove XObjects from PDF in C# and VB.NET
 
-Use PdfPage.XObjects.Remove or PdfPage.XObjects.RemoveAt method to remove specified XObject from a page or PdfPage.XObjects.Clear method to remove all such objects.
+This sample shows how to remove XObjects, often used for watermarks and backgrounds, from PDF document pages.
 
-Please note that XObjects are not always watermarks or backgrounds. Sometimes such objects are used for logos and other repeatable items.
+## Description
+
+[Docotic.Pdf library](https://bitmiracle.com/pdf-library/) provides access to the collection of page XObjects through the [PdfPage.XObjects](https://api.docotic.com/pdfpage-xobjects) property. The value of the property is a [PdfList](https://api.docotic.com/pdflist(t)) object. 
+
+You can remove any XObject you no longer need using the [PdfList.Remove](https://api.docotic.com/pdflist(t)-remove) or [PdfList.RemoveAt](https://api.docotic.com/pdflist(t)-removeat) method. The [PdfList.Clear](https://api.docotic.com/pdflist(t)-clear) method removes all such objects.
+
+Please note that XObjects are not always watermarks or backgrounds. A PDF file can use such objects for logos and other repeatable items, too.
+
+## See also
+* [Get free time-limited license key](https://bitmiracle.com/pdf-library/download)

Samples/XObjects, watermarks and backgrounds/RemoveXObjectsWatermarks/VB.NET/RemoveXObjectsWatermarks.vb

@@ -15,7 +15,7 @@ Namespace BitMiracle.Docotic.Pdf.Samples
 
             Using pdf As New PdfDocument("..\Sample Data\DocumentWithWatermark.pdf")
                 For Each page As PdfPage In pdf.Pages
-                    ' remove first XObject (in this case it's a watermark)
+                    ' Remove the first XObject. Here, it's a watermark.
                     page.XObjects.RemoveAt(0)
                 Next
 

Samples/XObjects, watermarks and backgrounds/Watermarks/C#/Watermarks.cs

@@ -33,8 +33,8 @@ public static void Main()
 
                 foreach (PdfPage page in pdf.Pages)
                 {
-                    // draw watermark at the top left corner over the page contents
-                    // this will also add watermark to the collection of page XObjects
+                    // Draw the watermark at the top left corner over the page contents.
+                    // This will also add the watermark to the collection of page XObjects.
                     page.Canvas.DrawXObject(watermark, 0, 0);
                 }
 

Samples/XObjects, watermarks and backgrounds/Watermarks/README.md

@@ -1,11 +1,13 @@
 # Add watermarks and backgrounds to PDF using C# or VB.NET
 This sample shows how to apply PDF watermarks and backgrounds in C# or VB.NET application.
 
-Use the `PdfDocument.CreateXObject` method to add a `PdfXObject` object to your document. Use the new object for a watermark. You can set up the PDF watermark appearance using methods and properties of the object’s canvas. To access the canvas, use the `PdfXObject.Canvas` property.
+Use the [PdfDocument.CreateXObject](https://api.docotic.com/pdfdocument-createxobject) method to add a [PdfXObject](https://api.docotic.com/pdfxobject) object to your document. Use the new object for a watermark. You can set up the PDF watermark appearance using methods and properties of the object’s canvas. To access the canvas, use the [PdfXObject.Canvas](https://api.docotic.com/pdfxobject-canvas) property.
 
-The `PdfCanvas.DrawXObject` methods apply the watermark to a page. It’s ok to apply the same watermark to more than one page.
+The [PdfCanvas.DrawXObject](https://api.docotic.com/pdfcanvas-drawxobject) methods apply the watermark to a page. It’s ok to apply the same watermark to more than one page.
 
-To convert a watermark to a background, set the `DrawOnBackground` property of the created object to `true`. After that, use apply the background to one or more pages using one of the PdfCanvas.DrawXObject methods.
+To convert a watermark to a background, set the [DrawOnBackground](https://api.docotic.com/pdfxobject-drawonbackground) property of the created object to `true`. After that, use apply the background to one or more pages using one of the `PdfCanvas.DrawXObject` methods.
 
 ## See also
+* [Get free time-limited license key](https://bitmiracle.com/pdf-library/download)
+* [Watermarks & backgrounds](https://bitmiracle.com/pdf-library/edit/#watermarks)
 * [Watermark PDFs using page background and foreground containers](https://bitmiracle.com/pdf-library/layout/compounds#watermarks)

Samples/XObjects, watermarks and backgrounds/Watermarks/VB.NET/Watermarks.vb

@@ -28,8 +28,8 @@ Namespace BitMiracle.Docotic.Pdf.Samples
                 watermarkCanvas.DrawString(100, 100, "This text is a part of the watermark")
 
                 For i As Integer = 0 To pdf.PageCount - 1
-                    ' draw watermark at the top left corner over the page contents
-                    ' this will also add watermark to the collection of page XObjects
+                    ' Draw the watermark at the top left corner over the page contents.
+                    ' This will also add the watermark to the collection of page XObjects.
                     pdf.Pages(i).Canvas.DrawXObject(watermark, 0, 0)
                 Next