Get PDF page size with iTextSharp

问题

I have a PDF document that I just received via file upload (InputFile).

I'd like to use iTextSharp to check it's page size before proceeding. For example, the size of a pdf when you go to file > Properties > Description Tab > Page Size (in acrobat).

Any advice on how I can do that?

THANKS!

回答1:

You need to read the pdf from your input stream (m).

PdfReader reader = new PdfReader(m);
// Page size
Rectangle pagesize = reader.GetPageSize(1);

来源：https://stackoverflow.com/questions/3480730/get-pdf-page-size-with-itextsharp