PowerPoint File Properties
GemBox.Presentation supports two types of file properties: built-in and custom.
Built-in properties contain general information about the document, such as the title, authors, date, etc. Custom properties are those that users define, both name and value.
With the following example, you can learn how to read and read both built-in and custom presentation properties.
using System;
using GemBox.Presentation;
class Program
{
static void Main()
{
// If using the Professional version, put your serial key below.
ComponentInfo.SetLicense("FREE-LIMITED-KEY");
var presentation = PresentationDocument.Load("%InputFileName%");
var properties = presentation.DocumentProperties;
Console.WriteLine("# Built-in document properties:");
// Write built-in document properties.
properties.BuiltIn[BuiltInDocumentProperty.Title] = "My Title";
properties.BuiltIn[BuiltInDocumentProperty.DateLastSaved] = DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ssZ");
// Read built-in document properties.
foreach (var builtinProperty in properties.BuiltIn)
Console.WriteLine($"{builtinProperty.Key,20}: {builtinProperty.Value}");
Console.WriteLine();
Console.WriteLine("# Custom document properties:");
// Write custom document properties.
properties.Custom["My Custom Property 1"] = "My Custom Value";
properties.Custom["My Custom Property 2"] = 123.4;
// Read custom document properties.
foreach (var customProperty in properties.Custom)
Console.WriteLine($"{customProperty.Key,20}: {customProperty.Value,-20} [{customProperty.Value.GetType()}]");
}
}Imports System
Imports GemBox.Presentation
Module Program
Sub Main()
' If using the Professional version, put your serial key below.
ComponentInfo.SetLicense("FREE-LIMITED-KEY")
Dim presentation = PresentationDocument.Load("%InputFileName%")
Dim properties = presentation.DocumentProperties
Console.WriteLine("# Built-in document properties:")
' Write built-in document properties.
properties.BuiltIn(BuiltInDocumentProperty.Title) = "My Title"
properties.BuiltIn(BuiltInDocumentProperty.DateLastSaved) = DateTime.Now.ToString("yyyy-MM-ddTHH:mm:ssZ")
' Read built-in document properties.
For Each builtinProperty In properties.BuiltIn
Console.WriteLine($"{builtinProperty.Key,20}: {builtinProperty.Value}")
Next
Console.WriteLine()
Console.WriteLine("# Custom document properties:")
' Write custom document properties.
properties.Custom("My Custom Property 1") = "My Custom Value"
properties.Custom("My Custom Property 2") = 123.4
' Read custom document properties.
For Each customProperty In properties.Custom
Console.WriteLine($"{customProperty.Key,20}: {customProperty.Value,-20} [{customProperty.Value.GetType()}]")
Next
End Sub
End Module