VB.NET

Extract PDF from JSON

See more JSON Examples

Demonstrates how to extract a PDF file contained within JSON. The file is represented as a base64 string within the JSON. Note: This example can extract any type of file, not just a PDF file. VB.NET

Dim success As Boolean = False

Dim json As New Chilkat.JsonObject

' Load the JSON.
success = json.LoadFile("qa_data/json/JSR5U.json")
If (success <> True) Then
    Debug.WriteLine(json.LastErrorText)
    Exit Sub
End If


' The JSON we loaded contains this:

' 	{
' 	...
' 	...
' 	  "data": {
' 	    "content": "JVBERi0xLjQ..."
' 	  }
' 	...
' 	...
' 	}

Dim sb As New Chilkat.StringBuilder
json.StringOfSb("data.content",sb)

Dim bd As New Chilkat.BinData
bd.AppendEncodedSb(sb,"base64")

success = bd.WriteFile("qa_output/a0015.pdf")