hello,
this pdf file created with Adobe InDesign, alot of elements are missing, also wrong color are displaying:
http://tal-ram.co.il/images/products/orders/14265798291.pdf

![viewer](https://cloud.githubusercontent.com/assets/1198143/6713275/f88ae242-cd99-11e4-8202-fdb5dc4b132e.png)

![org](https://cloud.githubusercontent.com/assets/1198143/6713312/24d83ff2-cd9a-11e4-82e7-647ad5440a64.png)

case "BM":
          this.ctx.globalCompositeOperation = value;
          break;
        case "SMask":
          if (this.current.activeSMask) {
            
            
            
            if (
              this.stateStack.length > 0 &&
              this.stateStack[this.stateStack.length - 1].activeSMask ===
                this.current.activeSMask
            ) {
              this.suspendSMaskGroup();
            } else {
              this.endSMaskGroup();
            }
          }
          this.current.activeSMask = value ? this.tempSMask : null;
          if (this.current.activeSMask) {
            this.beginSMaskGroup();
          }
          this.tempSMask = null;
          break;
        case "TR":
          this.current.transferMaps = value;
      }
    }
  }
  beginSMaskGroup() {