Classify PDF Documents using C#

ClassifyPDF_CSharp

Classify PDF Documents using C#
1. C# API for Document Classification
2. Classify PDF Documents with IAB-2 Taxonomy using C#
3. Classify PDF with Documents Taxonomy using C#
4. PDF Document Classification from Document Stream using C#
5.Classify Password Protected PDF using C#

ClassifyPDF_CSharp_ClassifyPasswordProtected.cs

// create classifier
var classifier = new Classifier();

// classify password-protected document
var response = classifier.Classify("password-protected.pdf", @"C:\Files\", password: "password");

// show classification information
Console.WriteLine(response.BestClassName, response.BestClassProbability);

ClassifyPDF_CSharp_ClassifyWithDocument.cs

// create classifier
var classifier = new Classifier();

// classify document with Document taxonomy
var response = classifier.Classify("sample.pdf", @"C:\Files\", 4, Taxonomy.Documents, PrecisionRecallBalance.Precision);
                
// show classification information
foreach (var r in response.BestResults)
{
    Console.WriteLine("ClassName: " + r.Name);
    Console.WriteLine("ClassProbability: " + r.Probability);
    Console.WriteLine("--------------------------------");
}

ClassifyPDF_CSharp_ClassifyWithIAB2.cs

// create classifier
var classifier = new Classifier();

// classify document with IAB-2
var response = classifier.Classify("sample.pdf", @"C:\Files\", 3, Taxonomy.Iab2);

// show classification information
foreach (var r in response.BestResults)
{
    Console.WriteLine("ClassName: " + r.Name);
    Console.WriteLine("ClassProbability: " + r.Probability);
    Console.WriteLine("--------------------------------");
}

ClassifyPDF_CSharp_ClassifyWithStream.cs

using (var fs = File.OpenRead(Path.Combine(@"C:\Files\", "sample.pdf")))
{
    // create classifier
    var classifier = new Classifier();
    
    // classify document
    var response = classifier.Classify(fs, "sample.pdf", 2, Taxonomy.Documents);
    
    // show classification information
    Console.WriteLine($"{"sample.pdf"}: {response.BestClassName}, {response.BestClassProbability}");
}