Get number of pages in a pdf using a cmd batch file

Question

I can see there are a lot of questions for getting the number of pages in a a pdf with C, PHP and others but am wondering with a batch file or cmd is there a simple way of getti

Answer 1

Without any external tools (save the script bellow as .bat) :

@if (@X)==(@Y) @end /* JScript comment
@echo off

cscript //E:JScript //nologo "%~f0"  %*

exit /b 0
@if (@X)==(@Y) @end JScript comment */

   var args=WScript.Arguments;
   var filename=args.Item(0);
   var fSize=0;
   var inTag=false;
   var tempString="";
   var pages="";

   function getChars(fPath) {

        var ado = WScript.CreateObject("ADODB.Stream");
        ado.Type = 2;  // adTypeText = 2
        ado.CharSet = "iso-8859-1";
        ado.Open();
        ado.LoadFromFile(fPath);                     
        var fs = new ActiveXObject("Scripting.FileSystemObject");
        fSize = (fs.getFile(fPath)).size;

        var fBytes = ado.ReadText(fSize);
        var fChars=fBytes.split('');
        ado.Close();
        return fChars;
   }


   function checkTag(tempString) {

    if (tempString.length == 0 ) {
        return;
    }

    if (tempString.toLowerCase().indexOf("/count") == -1) {
        return;
    }

    if (tempString.toLowerCase().indexOf("/type") == -1) {
        return;
    }

    if (tempString.toLowerCase().indexOf("/pages") == -1) {
        return;
    }

    if (tempString.toLowerCase().indexOf("/parent") > -1) {
        return;
    }


    var elements=tempString.split("/");
    for (i = 0;i < elements.length;i++) {

        if (elements[i].toLowerCase().indexOf("count") > -1) {
            pages=elements[i].split(" ")[1];

        }
    }
   }

   function getPages(fPath) {
        var fChars = getChars(fPath);

        for (i=0;i" &&
                 fChars[i+1] == ">" ) {

                inTag = false;
                checkTag(tempString);
                if (pages != "" ) {
                    return;
                }

                tempString="";

            }

            if (inTag) {
                if (fChars[i] != '\n' && fChars[i] != '\r') {
                   tempString += fChars[i];
                }
            }

        }

   }

   getPages(filename);
   if (pages == "") {
     WScript.Echo("1");
   } else {
    WScript.Echo(pages);
   }

It takes the path to the .pdf file and simply prints the number of the pages.Not pretty fast as it reads the pdf symbol by symbol , but could be optimized.