Sometimes PDDocSaveWithParams does not change PDF version

Question

Hi,
In a plug-in we are changing document properties like, Initial view, Page layout, Fast web view, pdf version etc, it is working fine most of the time, But for some documents it is not changing version backwards i mean, if the original file version is 1.5, it can change to 1.6 but does not changing to 1.4, why it is happening so, where could be the problem?
part of that code is given below for your reference
PDDocGetVersion( pdDoc, &asiMajor, &asiMinor );
asiMajor = 1;
asiMinor = 4;
PDDocSaveParamsRec pdDocSaveParams;
ProgressMonitorRec pMonitor;
pdDocSaveParams.saveFlags=PDSaveLinearized|PDSaveFullPDSaveCollectGarbage ;
pdDocSaveParams.newPath= asPath;
pdDocSaveParams.fileSys=ASGetDefaultFileSys();
pdDocSaveParams.mon=NULL;
pdDocSaveParams.monClientData=NULL;
pdDocSaveParams.cancelProc=NULL;
pdDocSaveParams.cancelProcClientData=NULL;
pdDocSaveParams.major=asiMajor;
pdDocSaveParams.minor=asiMinor;
PDDocSaveWithParams(pdDoc,&pdDocSaveParams);

Answer 1

You can do it like this:
_t_PDDocSaveParams sp;
memset(&sp,0,sizeof(_t_PDDocSaveParams));
sp.size = sizeof(_t_PDDocSaveParams);
sp.saveFlags = PDSaveFull;
sp.major = 1;
sp.minor = 4;
sp.newPath = [some pathName];
sp.saveFlags2 = PDSaveUncompressed; // <------ This will do the trick!
PDDocSaveWithParams([your pdDcoc], &sp);
This was tested with the SDK of Acrobat 9