Problem Unlocking Password Protected PDF documents.

Question

Hello,

I need help unlocking Encrypted PDF Documents.

I have tried the following without success.

CFURLRef pdfURL = CFURLCreateWithFileSystemPath (NULL, documentsDirectory,  kCFURLPOSIXPathStyle, 0); //1
pdf = CGPDFDocumentCreateWithURL((CFURLRef)pdfURL);
BOOL encrypted = CGPDFDocumentIsEncrypted(pdf);
if (encrypted) {

// Try 1:

    const char *str = (char *)theTextField.text; 
    BOOL _unlock = CGPDFDocumentUnlockWithPassword(pdf,str);

//Try 2:

    NSString *str1 = @"password";
    BOOL _unlock1 = CGPDFDocumentUnlockWithPassword(pdf,str1); 
}

I made sure the password is correct but the unlock function still returns False.

I have forgotten anything? Is there anything wrong??

Regards, Arun Thakkar.