Having issue with PDEContentRemoveElem() for deleting PDEElements

Question

Hi,
I am facing some problem in my code for deleting the PDEElements from the input pdf file. I used the
method PDEContentRemoveElem() and still I am seeing no elements are getting deleted from the pdf
file.  I gave the full code I have written for the element deletion.  Please point me if there is something
wrong in my code..  Many thanks for you for going through my code...
void DeleteElement(PDEElement pdeElement)
      PDEContent  content =  PDEContainerGetContent(reinterpret_cast<PDEContainer>(pdeElement));
      ASInt32  numElem =  PDEContentGetNumElems(content);
     for  (ASInt32  i = 0; i < numElem; i++)
          PDEElement element =  PDEContentGetElem(content, i);
          if  (PDEObjectGetType ((PDEObject)pdeElement) ==  kPDEContainer) 
                      DeleteElement (element);
          else
                    PDEContentRemoveElem(content,i);
void  MAINFuntionForElementDeletion ()
      ASPathName aoPDFPathName = NULL;
      ASText pathText = ASTextNew();
      ASFileSys fileSys = NULL;
      pathText = ASTextFromScriptText("E:\\Temp\\INPUT.pdf", kASRomanScript);
      fileSys = ASGetDefaultFileSysForPath(ASAtomFromString("ASTextPath"), pathText);
      aoPDFPathName = ASFileSysCreatePathName (fileSys, ASAtomFromString("ASTextPath"), pathText, 0);
      AVDoc avDoc = AVDocOpenFromFile(aoPDFPathName,fileSys,pathText);
DURING
      if(avDoc!=NULL)
            PDDoc pdDoc = AVDocGetPDDoc (avDoc);
            ASInt32  j, numElems;
            int numPages = PDDocGetNumPages (pdDoc);
            PDEContent aoPDEContent = NULL;
            PDPage aoPage = NULL;
            PDEElement  pdeElement;
            aoPage = PDDocAcquirePage(pdDoc, 0);
            aoPDEContent = PDPageAcquirePDEContent(aoPage, 0);
            numElems =  PDEContentGetNumElems(aoPDEContent);
            for  (j = 0; j < numElems; j++)
                 pdeElement =  PDEContentGetElem(aoPDEContent, j);
                  if  (PDEObjectGetType ((PDEObject)pdeElement) ==  kPDEContainer)
                             DeleteElement(pdeElement);
                  else
                         PDEContentRemoveElem(aoPDEContent,j);
            // Commit the changes to the PDEContent.
            PDPageSetPDEContent(aoPage,  gExtensionID);
            PDPageReleasePDEContent(aoPage, 0);
    HANDLER
           // some code for logging
    END_HANDLER

Answer 1

Always delete objects in reverse iteration.   Standard programming
practice.