GroupDocs.Watermark for .NET 19.10

AddWatermarkToDocumentNew.cs

foreach (string filePath in Directory.GetFiles(@"C:\Documents"))                        
{                                                                                       
    using (Watermarker watermarker = new Watermarker(filePath))                         
    {                                                                                   
        TextWatermark watermark = new TextWatermark("top secret", new Font("Arial", 36));
        watermark.ForegroundColor = Color.Red;
        watermark.HorizontalAlignment = HorizontalAlignment.Center;
        watermark.VerticalAlignment = VerticalAlignment.Center;
 
        watermarker.Add(watermark);                                            
        watermarker.Save();                                                             
    }                                                                                   
}

AddWatermarkToDocumentOld.cs

foreach (string filePath in Directory.GetFiles(@"C:\Documents"))
{
    using (Document document = Document.Load(filePath))
    {
        TextWatermark watermark = new TextWatermark("top secret", new Font("Arial", 36))
        watermark.ForegroundColor = Color.Red;
        watermark.HorizontalAlignment = HorizontalAlignment.Center;
        watermark.VerticalAlignment = VerticalAlignment.Center;
 
        document.AddWatermark(watermark);
        document.Save();
    }
}

GetDocumentInfoNew.cs

using (Watermarker watermarker = new Watermarker(@"C:\document.ppt"))
{
    IDocumentInfo info = watermarker.GetDocumentInfo();
    Console.WriteLine("File type: {0}", info.FileType);
    Console.WriteLine("Number of pages: {0}", info.PageCount);
    Console.WriteLine("Document size: {0} bytes", info.Size);
}

GetDocumentInfoOld.cs

DocumentInfo documentInfo = Document.GetInfo(@"C:\document.ppt");
Console.WriteLine(documentInfo.FileFormat);
Console.WriteLine(documentInfo.IsEncrypted);

RemoveWatermarkFromDocumentNew.cs

using (Watermarker watermarker = new Watermarker(@"C:\document.pdf"))
{
    PossibleWatermarkCollection watermarks = watermarker.Search();
    watermarker.Remove(watermarks);
    watermarker.Save(@"C:\document_without_watermarks.pdf");
}

RemoveWatermarkFromDocumentOld.cs

using (Document doc = Document.Load(@"C:\document.pdf"))
{
    PossibleWatermarkCollection watermarks = doc.FindWatermarks();
    watermarks.Clear();
    doc.Save(@"C:\document_without_watermarks.pdf");
}

SearchWatermarkInDocumentsNew.cs

using (Watermarker watermarker = new Watermarker(@"C:\document.pdf"))
{
    SizeSearchCriteria widthRange = new SizeSearchCriteria(Dimension.Width, 50, 100);
    RotateAngleSearchCriteria rotateAngle = new RotateAngleSearchCriteria(0, 45);
    TextSearchCriteria textCriteria = new TextSearchCriteria(new Regex("^Test watermark$"));
 
    PossibleWatermarkCollection watermarks = watermarker.Search(textCriteria.And(widthRange.Or(rotateAngle)));
 
    Console.WriteLine("Found {0} possible watermarks.", watermarks.Count);
}

SearchWatermarkInDocumentsOld.cs

using (Document doc = Document.Load(@"C:\document.pdf"))
{
    SizeSearchCriteria widthRange = new SizeSearchCriteria(Dimension.Width, 50, 100);
    RotateAngleSearchCriteria rotateAngle = new RotateAngleSearchCriteria(0, 45);
    TextSearchCriteria textCriteria = new TextSearchCriteria(new Regex("^Test watermark$"));
 
    PossibleWatermarkCollection watermarks = doc.FindWatermarks(textCriteria.And(widthRange.Or(rotateAngle)));
 
    Console.WriteLine("Found {0} possible watermarks.", watermarks.Count);
}