PDF is not able to handle Images if it's more than 600Kb

Hello All,

I have a question , When I used the below method it's not able to call the web service, if pdf has 10 images on the pdf and size is 10kb each. Is there size limit when we used the below query.

var fields = [];
var Arrays =[];
for (var i = 0; i <= this.numFields - 1; i++)
{
fields.push(this.getNthFieldName(i));
Arrays = fields.sort( function(a,b)
{return a - b; } );
}

var aSubmitFields = fields ;

this.submitForm({
cURL: "http://localhost/Ssvc/df",
aFields: aSubmitFields,
cSubmitAs: "FDF"
});

Is there any alternative way for doing this?

Thanks