PDF Xpress™ enables users to create, modify and delete document metadata in a PDF document.
PDF Xpress supports creating, reading, and modifying general information about a PDF document, called Metadata. Metadata is stored in the document information dictionary and can include information such as the document's author, title, and keywords.
To read Metadata for an open PDF document, access the DocumentMetadata of the document and either:
- Read specific property values such as Author, Title, CreationDate, ModificationDate, Subject, Creator or Producer.
- Invoke GetItemProperty to obtain the value of a specific entry.
To add or modify Metadata for an open PDF document, access the DocumentMetadata of the document and either:
- Modify specific property values such as Author, Title, Subject, Creator or Producer.
- Invoke SetItemProperty to alter the value of a specific entry.
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PDF Xpress does not permit direct modification of CreationDate or ModDate Metadata. |
Create Document Metadata
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'This code demonstrates creating document metadata On Error GoTo error Dim pdfXpress1 As New PdfXpress pdfXpress1.Initialize pdfxpress1.RaiseExceptions = True Dim docColl As New PdfDocumentCollection docColl.SetParentControl pdfxpress1 docColl.Add "C:\ mynewfile.pdf ", "" Dim data As DocumentMetadata Set data = docColl.GetDocumentAt(0).DocumentMetadata data.SetItemProperty "Author", "New Author" data.SetItemProperty "CreationDate","031508" data.SetItemProperty "Creator", "NewCreator" data.SetItemProperty "ModificationDate","031608" . . . GoTo finish error: MsgBox Err.Description finish: Set document = Nothing pdfxpress1.Terminate Set pdfxpress1= Nothing |
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Modify Document Metadata
| VB Example | Copy Code |
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'This code demonstrates modifying document metadata On Error GoTo error Dim pdfXpress1 As New PdfXpress pdfXpress1.Initialize pdfxpress1.RaiseExceptions = True Dim data As DocumentMetadata Dim docColl As New PdfDocumentCollection docColl.SetParentControl pdfxpress1 docColl.Add "C:\mynewfile.pdf", "" Set data = docColl.GetDocumentAt(0).DocumentMetadata data.author = "New Author" . . . GoTo finish error: MsgBox Err.Description finish: Set document = Nothing pdfxpress1.Terminate Set pdfxpress1= Nothing |
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Delete Document Metadata
| VB Example | Copy Code |
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'This code demonstrates modifying document metadata On Error GoTo error Dim pdfXpress1 As New PdfXpress pdfXpress1.Initialize pdfxpress1.RaiseExceptions = True Dim data As DocumentMetadata Dim docColl As New PdfDocumentCollection docColl.SetParentControl pdfxpress1 docColl.Add "C:\mynewfile.pdf", "" Set data = docColl.GetDocumentAt(0).DocumentMetadata data.author = "" . . . GoTo finish error: MsgBox Err.Description finish: Set document = Nothing pdfxpress1.Terminate Set pdfxpress1= Nothing |
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