How to delete blank pages in a multipage document?

Question

EDIT : added an answer because edit would have been to long (see answer2)

Following a former post about document merging I ended up with a working script (Thanks Henriqu

Answer 1

I modified the script so that it gives me constant results and wrote an analyse function to get the structure of the document. I found it's probably a better idea to put all this in an answer rather than edit my first question because it's a bit long. 1° the simplified script :

function mergeDocs(docIDs) {
  var baseDocname = DocumentApp.openById(docIDs[0]).getName();// typical name = IMPRESSION_page_07_07-06-2012__20:57
  var modelDoc = DocsList.getFileById(docIDs[0]);
  var newmodelName=baseDocname.substr(0,11)+'multipage'+baseDocname.substring(18);
  var baseDocId = DocsList.copy(modelDoc,newmodelName).getId();// make a copy of firstelement and give it new basedocname build from the serie(to keep margins etc...)
  var baseDoc = DocumentApp.openById(baseDocId)
  var body = baseDoc.getActiveSection();
  var headpara='  *  '
  for (dd=1;dd

2° the analyse function :

function analyse() {
  var Doc = DocumentApp.openById('1UOr44ju8Li6yCSlmFbMRdimNpR2BjCGjcLkrwG9jW74');
    var totalElements = Doc.getNumChildren();
    var el=[]
    for( var j = 0; j < totalElements; ++j ) {
      var element = Doc.getChild(j);
      var type = element.getType();
Logger.log(j+" : "+type)
       if (type =='PARAGRAPH'){
       el[j]=element.getText()
       };
    }
Logger.log(el)    
}

and finally the result of this analyse :

0 : PARAGRAPH
1 : PARAGRAPH
2 : TABLE
3 : PARAGRAPH
4 : PARAGRAPH
5 : PARAGRAPH
6 : TABLE
7 : PARAGRAPH
8 : PARAGRAPH
9 : PARAGRAPH
10 : TABLE
11 : PARAGRAPH
12 : PARAGRAPH
13 : PARAGRAPH
14 : TABLE
15 : PARAGRAPH
[, , NOT_FOUND, , ,   *  , NOT_FOUND, , ,   *  , NOT_FOUND, , ,   *  , NOT_FOUND, ]

(the ' * ' are paragraphs added by the script, the 'NOT_FOUND' are the tables) So, now I know that pagebreaks are shown as paragraphs, that the doc creates by itself paragraphs between tables (which causes the blank pages) but even when I try to remove unwanted paragraphs using element.removeFromParent(), I keep having these blank pages... I'm a bit lost right now ;-) Sorry for being so long.