Always call on after print

README.md

@@ -220,6 +220,22 @@ const componentRef = useRef(null);
 
 ## FAQ
 
+### Can `react-to-print` print a PDF?
+
+We simply open the browser's print preview window, so we aren't able to print a PDF as we lose control once the print preview window opens. However, it should be very easy to use `react-to-print` to take the information you need an pass it to a library that can generate a PDF.
+
+```tsx
+const handlePrint = useReactToPrint({
+  ...,
+  print: async (printIframe: HTMLIframeElement) => {
+    // Do whatever you want here, including asynchronous work
+    await generateAndSavePDF(printIframe);
+  },
+});
+```
+
+For examples of how others have done this, see [#484](https://github.com/gregnb/react-to-print/issues/484)
+
 ### Can the `ComponentToPrint` be a functional component?
 
 Yes, but only if you wrap it with [`React.forwardRef`](https://reactjs.org/docs/forwarding-refs.html). `react-to-print` relies on refs to grab the underlying DOM representation of the component, and functional components [cannot take refs by default](https://reactjs.org/docs/refs-and-the-dom.html#accessing-refs).

src/index.tsx

@@ -124,15 +124,16 @@ export default class ReactToPrint extends React.Component<IReactToPrintProps> {
                         }
                     }
 
-                    if (onAfterPrint) {
-                        onAfterPrint();
-                    }
                 } else {
                     // Some browsers, such as Firefox Android, do not support printing at all
                     // https://developer.mozilla.org/en-US/docs/Web/API/Window/print
                     this.logMessages(["Printing for this browser is not currently possible: the browser does not have a `print` method available for iframes."]);
                 }
 
+                if (onAfterPrint) {
+                    onAfterPrint();
+                }
+
                 this.handleRemoveIframe();
             } else {
                 this.logMessages(["Printing failed because the `contentWindow` of the print iframe did not load. This is possibly an error with `react-to-print`. Please file an issue: https://github.com/gregnb/react-to-print/issues/"]);