Create & Delete Thumbnails

Within a PDF document, each page may have zero or one thumbnail images associated with it. These thumbnails are stored within the PDF document. PDF Xpress™ can be used to create or delete thumbnails within the PDF document.

Create Thumbnails

Thumbnails can be created on a specified page from image information accessed from file, handle, memory, or ImageDataInfo object. To create a thumbnail use the "CreateThumbnailFrom" methods: CreateThumbnailFromData, CreateThumbnailFromFile, CreateThumbnailFromHandle, or CreateThumbnailFromMemory.

VB Example	Copy Code
'This code demonstrates creating thumbnails On Error GoTo error Dim pdfXpress1 As New PdfXpress pdfXpress1.Initialize pdfxpress1.RaiseExceptions = True Dim document As New PdfDocument document. SetParentControl pdfXpress1 document.OpenDocument "C:\test.pdf","" document.CreateThumbnailFromFile 0, "C:\testImage.jpg", 0 . . . GoTo finish error: MsgBox Err.Description finish: Set document = Nothing pdfxpress1.Terminate Set pdfxpress1= Nothing

VB Example

Copy Code

'This code demonstrates creating thumbnails
On Error GoTo error
Dim pdfXpress1 As  New PdfXpress
pdfXpress1.Initialize
pdfxpress1.RaiseExceptions = True
Dim document As New PdfDocument
document. SetParentControl pdfXpress1  
document.OpenDocument "C:\test.pdf",""
document.CreateThumbnailFromFile 0, "C:\testImage.jpg", 0
.
.
.
GoTo finish
error:
MsgBox Err.Description
finish:

Set document = Nothing
pdfxpress1.Terminate
Set pdfxpress1= Nothing

Delete Thumbnails

To delete a thumbnail on a specified page of the PDF document, call the DeleteThumbnail method.

VB Example	Copy Code
'This code demonstrates deleting thumbnails On Error GoTo error Dim pdfXpress1 As New PdfXpress pdfXpress1.Initialize pdfxpress1.RaiseExceptions = True Dim document As New PdfDocument document. SetParentControl pdfXpress1 document.OpenDocument "C:\test.pdf","" Dim pageNumber As Integer pageNumber = 0 document.DeleteThumbnail pageNumber . . . GoTo finish error: MsgBox Err.Description finish: Set document = Nothing pdfxpress1.Terminate Set pdfxpress1= Nothing

VB Example

Copy Code

'This code demonstrates deleting thumbnails 
On Error GoTo error
Dim pdfXpress1 As  New PdfXpress
pdfXpress1.Initialize
pdfxpress1.RaiseExceptions = True
Dim document As New PdfDocument
document. SetParentControl pdfXpress1   
document.OpenDocument "C:\test.pdf",""
Dim pageNumber As Integer
pageNumber = 0
document.DeleteThumbnail pageNumber
.
.
.
GoTo finish
error:
MsgBox Err.Description
finish:

Set document = Nothing
pdfxpress1.Terminate
Set pdfxpress1= Nothing