Conversion from 7.26 to 8.15

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   I am converting from 7.26 to 8.15 using Delphi 2007. My code is to allow open but only allow printing. So I had two constants defined:  OWNER_PASSWORD = 'test owner password';
  USER_PASSWORD = '';
and the following code:
var
  iPermissions: integer;
  iResult: integer;
begin
  iPermissions := FPDF.EncodePermissions( 1,     // Yes - CanPrint
                                                  0,     // No  - CanCopy
                                                  0,     // No  - CanChange
                                                  0,     // No  - CanAddNotes
                                                  0,     // No  - CanFillFields
                                                  0,     // No  - CanCopyAccess
                                                  0,     // No  - CanAssemble
                                                  1 );   // Yes - CanPrintFull
  iResult := FPDF.Encrypt( OWNER_PASSWORD, USER_PASSWORD, 2, iPermissions );
  FPDF.SaveToFile( 'test.pdf' );
end;

That code works with 7.26. However under 8.15 I am unable to open the saved file with Acrobat Reader, even with the password. I checked the return codes of each function and no errors were reported. However, if I change the Encrypt function to use 256 AES Encryption, i.e.
  FPDF.Encrypt( OWNER_PASSWORD, USER_PASSWORD, 3, iPermissions );
everything is fine. I can open the file without password and I am only able to print.

Luke

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Luke Members Profile Find Members Posts Team Player Joined: 13 Aug 10 Location: USA Status: Offline Points: 26	Post Options Post Reply Quote Luke Report Post Thanks(0) Quote Reply Topic: Conversion from 7.26 to 8.15 Posted: 15 May 12 at 12:35AM
	I am converting from 7.26 to 8.15 using Delphi 2007. My code is to allow open but only allow printing. So I had two constants defined: OWNER_PASSWORD = 'test owner password'; USER_PASSWORD = ''; and the following code: var iPermissions: integer; iResult: integer; begin iPermissions := FPDF.EncodePermissions( 1, // Yes - CanPrint 0, // No - CanCopy 0, // No - CanChange 0, // No - CanAddNotes 0, // No - CanFillFields 0, // No - CanCopyAccess 0, // No - CanAssemble 1 ); // Yes - CanPrintFull iResult := FPDF.Encrypt( OWNER_PASSWORD, USER_PASSWORD, 2, iPermissions ); FPDF.SaveToFile( 'test.pdf' ); end; That code works with 7.26. However under 8.15 I am unable to open the saved file with Acrobat Reader, even with the password. I checked the return codes of each function and no errors were reported. However, if I change the Encrypt function to use 256 AES Encryption, i.e. FPDF.Encrypt( OWNER_PASSWORD, USER_PASSWORD, 3, iPermissions ); everything is fine. I can open the file without password and I am only able to print. Luke
	Luke M. Miller ResCorSoft, Inc.

Wheeley Members Profile Find Members Posts Senior Member Joined: 30 Oct 05 Location: United States Status: Offline Points: 146	Post Options Post Reply Quote Wheeley Report Post Thanks(0) Quote Reply Posted: 15 May 12 at 3:03AM
	It's looks like 8.16 beta 1 might have fixed it. Reviewing the change log it says that made a change to 128-bit AES encryption. I would try that version and see if your issue goes away. Wheeley

Luke Members Profile Find Members Posts Team Player Joined: 13 Aug 10 Location: USA Status: Offline Points: 26	Post Options Post Reply Quote Luke Report Post Thanks(0) Quote Reply Posted: 15 May 12 at 3:33AM
	Thanks. Working on code that will go into production later this week. Would rather not use beta code. Easier just to use 256-bit encryption. Everyone should have upgraded to Acrobat 9 anyway.
	Luke M. Miller ResCorSoft, Inc.