The name of the required custom information key.
Example





In This Topic
GdPicture14 Namespace / GdPicturePDF Class / GetCustomPDFInformation Method

GetCustomPDFInformation Method (GdPicturePDF)

In This Topic
Returns a string containing the value of the specified custom information key (the custom metadata field) in the currently loaded PDF document.
Syntax
'Declaration

 


Public Function GetCustomPDFInformation( _

   ByVal Key As String _

) As String
public string GetCustomPDFInformation( 

   string Key

)
public function GetCustomPDFInformation( 

    Key: String

): String; 
public function GetCustomPDFInformation( 

   Key : String

) : String;
public: string* GetCustomPDFInformation( 

   string* Key

) 
public:

String^ GetCustomPDFInformation( 

   String^ Key

)

Parameters

Key
The name of the required custom information key.

Return Value

The value of the specified custom information key as a string. The GdPicturePDF.GetStat method can be subsequently used to determine if this method has been successful.
Remarks
This method is only allowed for use with non-encrypted documents.

It is recommend to use the GdPicturePDF.GetStat method to identify the specific reason for the method's failure, if any.

Example
How to find out the names of the custom metadata fields and their values if they are specified in the PDF document. 
Dim gdpicturePDF As New GdPicturePDF()

Dim status As GdPictureStatus = gdpicturePDF.LoadFromFile("test.pdf", False)

If status = GdPictureStatus.OK Then

    Dim keys As String = gdpicturePDF.GetCustomPDFInformationKeys(vbCrLf)

    status = gdpicturePDF.GetStat()

    If status = GdPictureStatus.OK Then

        If keys.Equals("") Then

            MessageBox.Show("Your PDF document does not contain any custom keys.", "Example: GetCustomPDFInformation")

        Else

            MessageBox.Show("All custom keys are:" + vbCrLf + keys, "Example: GetCustomPDFInformation")

            Dim value As String = ""

            Dim outPut As String = ""

            Dim keyTable As String() = Split(keys, vbCrLf)

            For x As Integer = 0 To keyTable.Length - 1

                value = gdpicturePDF.GetCustomPDFInformation(keyTable(x))

                status = gdpicturePDF.GetStat()

                If status = GdPictureStatus.OK Then

                    outPut = outPut + keyTable(x) + " = " + value + vbCrLf

                Else

                    MessageBox.Show("The GetCustomPDFInformation() method has failed with the status: " + status.ToString(), "Example: GetCustomPDFInformation")

                End If

            Next

            MessageBox.Show("Custom keys and values are:" + vbCrLf + outPut, "Example: GetCustomPDFInformation")

        End If

    Else

        MessageBox.Show("The GetCustomPDFInformationKeys() method has failed with the status: " + status.ToString(), "Example: GetCustomPDFInformation")

    End If

Else

    MessageBox.Show("The file can't be loaded.", "Example: GetCustomPDFInformation")

End If

gdpicturePDF.Dispose()
GdPicturePDF gdpicturePDF = new GdPicturePDF();

GdPictureStatus status = gdpicturePDF.LoadFromFile("test.pdf", false);

if (status == GdPictureStatus.OK)

{

    string keys = gdpicturePDF.GetCustomPDFInformationKeys("\n");

    status = gdpicturePDF.GetStat();

    if (status == GdPictureStatus.OK)

    {

        if (keys.Equals(""))

        {

            MessageBox.Show("Your PDF document does not contain any custom keys.", "Example: GetCustomPDFInformation");

        }

        else

        {

            MessageBox.Show("All custom keys are:\n" + keys, "Example: GetCustomPDFInformation");

            string[] names = keys.Split('\n');

            string value = "";

            string output = "";

            foreach (var name in names)

            {

                value = gdpicturePDF.GetCustomPDFInformation(name);

                status = gdpicturePDF.GetStat();

                if (status == GdPictureStatus.OK)

                {

                    output = output + name + " = " + value + "\n";

                }

                else

                {

                    MessageBox.Show("The GetCustomPDFInformation() method has failed with the status: " + status.ToString(), "Example: GetCustomPDFInformation");

                }

            }

            MessageBox.Show("Custom keys and values are:\n" + output, "Example: GetCustomPDFInformation");

        }

    }

    else

    {

        MessageBox.Show("The GetCustomPDFInformationKeys() method has failed with the status: " + status.ToString(), "Example: GetCustomPDFInformation");

    }

}

else

{

    MessageBox.Show("The file can't be loaded.", "Example: GetCustomPDFInformation");

}

gdpicturePDF.Dispose();
Example
How to find out the names of the custom metadata fields and their values if they are specified in the PDF document. Dim gdpicturePDF As New GdPicturePDF() Dim status As GdPictureStatus = gdpicturePDF.LoadFromFile("test.pdf", False) If status = GdPictureStatus.OK Then Dim keys As String = gdpicturePDF.GetCustomPDFInformationKeys(vbCrLf) status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then If keys.Equals("") Then MessageBox.Show("Your PDF document does not contain any custom keys.", "Example: GetCustomPDFInformation") Else MessageBox.Show("All custom keys are:" + vbCrLf + keys, "Example: GetCustomPDFInformation") Dim value As String = "" Dim outPut As String = "" Dim keyTable As String() = Split(keys, vbCrLf) For x As Integer = 0 To keyTable.Length - 1 value = gdpicturePDF.GetCustomPDFInformation(keyTable(x)) status = gdpicturePDF.GetStat() If status = GdPictureStatus.OK Then outPut = outPut + keyTable(x) + " = " + value + vbCrLf Else MessageBox.Show("The GetCustomPDFInformation() method has failed with the status: " + status.ToString(), "Example: GetCustomPDFInformation") End If Next MessageBox.Show("Custom keys and values are:" + vbCrLf + outPut, "Example: GetCustomPDFInformation") End If Else MessageBox.Show("The GetCustomPDFInformationKeys() method has failed with the status: " + status.ToString(), "Example: GetCustomPDFInformation") End If Else MessageBox.Show("The file can't be loaded.", "Example: GetCustomPDFInformation") End If gdpicturePDF.Dispose() GdPicturePDF gdpicturePDF = new GdPicturePDF(); GdPictureStatus status = gdpicturePDF.LoadFromFile("test.pdf", false); if (status == GdPictureStatus.OK) { string keys = gdpicturePDF.GetCustomPDFInformationKeys("\n"); status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) { if (keys.Equals("")) { MessageBox.Show("Your PDF document does not contain any custom keys.", "Example: GetCustomPDFInformation"); } else { MessageBox.Show("All custom keys are:\n" + keys, "Example: GetCustomPDFInformation"); string[] names = keys.Split('\n'); string value = ""; string output = ""; foreach (var name in names) { value = gdpicturePDF.GetCustomPDFInformation(name); status = gdpicturePDF.GetStat(); if (status == GdPictureStatus.OK) { output = output + name + " = " + value + "\n"; } else { MessageBox.Show("The GetCustomPDFInformation() method has failed with the status: " + status.ToString(), "Example: GetCustomPDFInformation"); } } MessageBox.Show("Custom keys and values are:\n" + output, "Example: GetCustomPDFInformation"); } } else { MessageBox.Show("The GetCustomPDFInformationKeys() method has failed with the status: " + status.ToString(), "Example: GetCustomPDFInformation"); } } else { MessageBox.Show("The file can't be loaded.", "Example: GetCustomPDFInformation"); } gdpicturePDF.Dispose();
See Also

Reference

GdPicturePDF Class
GdPicturePDF Members
GetStat Method
GetStat Method
LoadFromFile Method
GetCustomPDFInformationKeys Method
SetCustomPDFInformation Method
DeleteCustomPDFInformation Method