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ASPOSE PDF only have 4 page but the PDF all 14Page

why
Aspose.Pdf.Document pdfDocument = new Aspose.Pdf.Document(filePath);
stz2845.pdf (8.8 MB)

@xiaobaobao

It is due to the trial version limitation of the API. Please make sure to use the API with a valid or 30-days free temporary license and extract pages. In case you still face any issues, please let us know.