diff --git a/exporter.py b/exporter.py
index decd0a5..bd73c42 100755
--- a/exporter.py
+++ b/exporter.py
@@ -62,10 +62,9 @@
   return sent_all_jobs and not len(jobs)
 
 if not from_stdin:
-  base_args = make_base_job_args(args)
   for i in args["input"]:
     try:
-      job = Job(input = i, **base_args)
+      job = Job(in_file = i)
       jobs[job.id] = job
     except Exception, e:
       print e
@@ -92,10 +91,9 @@
   if err is not None:
     print err
   else:
-    base_args = make_base_job_args(dict(args.items() + line_args.items()))
     for i in line_args["input"]:
       try:
-        job = Job(input = i, **base_args)
+        job = Job(in_file = i)
         jobs[job.id] = job
       except Exception, e:
         print e

diff --git a/exporter.py b/exporter.py
index decd0a5..bd73c42 100755
--- a/exporter.py
+++ b/exporter.py
@@ -62,10 +62,9 @@
   return sent_all_jobs and not len(jobs)
 
 if not from_stdin:
-  base_args = make_base_job_args(args)
   for i in args["input"]:
     try:
-      job = Job(input = i, **base_args)
+      job = Job(in_file = i)
       jobs[job.id] = job
     except Exception, e:
       print e
@@ -92,10 +91,9 @@
   if err is not None:
     print err
   else:
-    base_args = make_base_job_args(dict(args.items() + line_args.items()))
     for i in line_args["input"]:
       try:
-        job = Job(input = i, **base_args)
+        job = Job(in_file = i)
         jobs[job.id] = job
       except Exception, e:
         print e
diff --git a/job.py b/job.py
index 9c448e8..548ca8a 100644
--- a/job.py
+++ b/job.py
@@ -1,8 +1,16 @@
 import os.path
 import base64
 import json
+from jsonschema import validate
 from args import *
 
+asset_src_schema = {
+  "type":"object",
+  "properties":{
+    "graphics":{"type":"array"}
+  }
+}
+
 class Job:
   next_id = 0
   def __init__(self, in_file, base_dir = None, out_dir = None):
@@ -20,14 +28,19 @@
     self.graphics = []
     with open(self.in_file, mode="r") as f:
       graphics = []
+      file_json = {}
       try:
         file_json = json.loads(f.read())
       except:
         raise Exception("Failed: " + in_file + " does not contain valid data")
-      if not "graphics" in file_json or not isinstance(file_json["graphics"], list):
-        raise Exception("Failed: " + in_file + " does not contain a \"graphics\" list")
-      for graphic_json in file_json["graphics"]:
-        self.graphics.append(Graphic(graphic_json))
+
+    try:
+      validate(instance=file_json, schema=asset_src_schema)
+    except Exception, e:
+      raise Exception("Faield: " + in_files + " " + str(e))
+
+    for graphic_json in file_json["graphics"]:
+      self.graphics.append(Graphic(graphic_json))
 
   def get_cmd(self):
     return {"graphics":[g.get_cmd() for g in self.graphic], "id":self.id}