PdfImage.Id Property

public string Id { get; }

Public ReadOnly Property Id As String
	Get

Property Value

The identifier has the following properties:

• For all inline images the identifier is equal to null.
• Different non-inline images from the same PdfDocument object have different identifiers. None of these identifiers is equal to null.
• Same images from multiple PdfDocument objects have same identifiers. Two images are said to be the same when they are based on internal PDF structures with the same number.
• Images from different documents have same identifiers if those images are based on internal PDF structures with the same number.
• Any change to a PdfDocument object which does not renumber its internal structures does not change the identifier.
• When the library saves a document it might renumber its internal structures. Therefore, the identifier might change after invocation of any of the Save() methods.