I have a PDF that is Secured in Adobe Acrobat (File-->Properties-->Change-->Permissions section).

When I load that PDF in PDFium 9.70.39.472, it will load - though it should give me an InvalidPasswordException.


try
{
using (var doc = PdfDocument.Load("secured.pdf"))
{
ProcessDocument(doc);
}
}
catch (InvalidPasswordException)
{
throw new Exception("This PDF has a password and you don't know what it is!");
}


My code never hits the catch. It just loads the PDF without issue. To make matters worse, if I save the PDF:
doc.Save(@"secured-newpwd.pdf", SaveFlags.NoIncremental | SaveFlags.RemoveSecurity);



It actually saves a new PDF without the password even though I am never supplying the password.