diff --git a/src/components/QR/QR.tsx b/src/components/QR/QR.tsx
index ac6593e..ff8cec7 100644
--- a/src/components/QR/QR.tsx
+++ b/src/components/QR/QR.tsx
@@ -12,7 +12,7 @@ export default (props: Props) => {
   return (
     <>
       <section>
-        <img src={qrcode()} alt="QR Code" style={`width: ${props.width || 'auto' }rem`}/>
+        <img src={qrcode()} alt="QR Code" style={`width: ${props.width || 'auto'}rem`} />
       </section>
     </>
   )
diff --git a/src/pages/RegisterPage/Register.tsx b/src/pages/RegisterPage/Register.tsx
index 4a2ea85..c5a9fda 100644
--- a/src/pages/RegisterPage/Register.tsx
+++ b/src/pages/RegisterPage/Register.tsx
@@ -172,9 +172,29 @@ export default () => {
                     </FileField>
 
                     <Padding top={2} bottom={0} left={0} right={0}>
-                      <Row>
-                        <Button edges="curved" design="bo-primary" label="Register" onClick={generateSignature} wide />
-                      </Row>
+                      <Show when={file() && password()}>
+                        <Row>
+                          <Button edges="curved" design="bo-primary" label="Register" onClick={generateSignature} wide />
+                        </Row>
+                      </Show>
+
+                      <Show when={!file() && !password()}>
+                        <Row>
+                          <span class="already-registered">Need password and signature</span>
+                        </Row>
+                      </Show>
+
+                      <Show when={file() && !password()}>
+                        <Row>
+                          <span class="already-registered">Need password</span>
+                        </Row>
+                      </Show>
+
+                      <Show when={!file() && password()}>
+                        <Row>
+                          <span class="already-registered">Need signature</span>
+                        </Row>
+                      </Show>
                     </Padding>
                   </Show>
 
@@ -211,9 +231,17 @@ export default () => {
                     </FileField>
 
                     <Padding top={2} bottom={0} left={0} right={0}>
-                      <Row>
-                        <Button edges="curved" design="bo-primary" label="Register" onClick={generateSignature} wide />
-                      </Row>
+                      <Show when={file()}>
+                        <Row>
+                          <Button edges="curved" design="bo-primary" label="Register" onClick={generateSignature} wide />
+                        </Row>
+                      </Show>
+
+                      <Show when={!file()}>
+                        <Row>
+                          <span class="already-registered">Need signature</span>
+                        </Row>
+                      </Show>
                     </Padding>
                   </Show>