glDoc is opened and I do a File.exist on "Crypto.pdf"
I'm using the PDFium library of DonManfred.
The complete error message is:
java.lang.NullPointerException: Attempt to invoke virtual method 'com.shockwave.pdfium.PdfDocument com.shockwave.pdfium.PdfiumCore.newDocument(android.os.ParcelFileDescriptor)' on a null object reference