PDF to Tiff convert results in blank pages after the first page

Aspose.PDF Product Family
1

When attempting to convert the attached 5 page PDF to a multi-page tiff, the first page renders correctly but he other 4 pages are blank. I am using vb.net (3.5 .Net framework) and version 11.8.0.0 of the Aspose.PDF.dll. I have tried using both the TiffDevice and PDFConverter classes but the results are the same. I don’t know if there is something malformed about the PDF document, if there is some security in the PDF preventing page extraction, or if I am not using the objects correctly. Here is some sample code I am using.





Private Sub UseTiffDeviceMethod()



Dim pdfDocument As New Aspose.Pdf.Document(My.Application.Info.DirectoryPath & “\test.pdf”)

pdfDocument.Flatten()

pdfDocument.Form.Flatten()



'create Resolution object

Dim resolution = New Aspose.Pdf.Devices.Resolution(300)



'create TiffSettings object

Dim tiffSettings As New Aspose.Pdf.Devices.TiffSettings()

tiffSettings.Compression = Aspose.Pdf.Devices.CompressionType.CCITT4

tiffSettings.Depth = Aspose.Pdf.Devices.ColorDepth.Format1bpp

tiffSettings.SkipBlankPages = False



'create TIFF device

Dim tiffDevice As New Aspose.Pdf.Devices.TiffDevice(resolution, tiffSettings)

tiffDevice.Process(pdfDocument, My.Application.Info.DirectoryPath & “\test1.tif”)



End Sub



Private Sub UsePDFConverterMethod()



Dim dataDir As String = My.Application.Info.DirectoryPath

Dim pdfConverter As New Aspose.Pdf.Facades.PdfConverter()

Dim resolution As New Aspose.Pdf.Devices.Resolution(300)

pdfConverter.Resolution = resolution

pdfConverter.BindPdf(dataDir & “\test.pdf”)

pdfConverter.DoConvert()

Dim tiffSettings As New Aspose.Pdf.Devices.TiffSettings()

tiffSettings.Depth = Aspose.Pdf.Devices.ColorDepth.Format1bpp

pdfConverter.SaveAsTIFF(dataDir & “\test2.tif”, Aspose.Pdf.Devices.CompressionType.CCITT4)

pdfConverter.Close()



End Sub

2

Hi Steven,

Thanks for your inquiry. I have tested your scenario with shared document using Aspose.Pdf for .NET 12.0.0 and managed to observe the reported issue. For further investigation, I have logged an issue in our issue tracking system as PDFNET-41445 and also linked your request to it. We will keep you updated via this thread regarding the issue status.

We are sorry for the inconvenience caused.

3

The issues you have found earlier (filed as PDFNET-41445) have been fixed in Aspose.PDF for .NET 18.9.