diff --git a/build/docs/content/04-html.md b/build/docs/content/04-html.md
index 8f1e5070..858f4d74 100644
--- a/build/docs/content/04-html.md
+++ b/build/docs/content/04-html.md
@@ -98,6 +98,12 @@ The following classes allow you to inject printing values:
> **Attention:** the CSS properties are independant of the ones used in the `index.html` file.
> Also, `footer.html` CSS properties override the ones from `header.html`.
+For images, the only solution currently is to use a `base64` encoded source:
+
+```html
+
+```
+
### cURL
```bash
diff --git a/docs/index.html b/docs/index.html
index 98c168d3..09b8ad2e 100755
--- a/docs/index.html
+++ b/docs/index.html
@@ -454,6 +454,11 @@ Respectively, a file named
header.html and footer.html
Also, footer.html CSS properties override the ones from header.html.
For images, the only solution currently is to use a base64 encoded source:
<img src="data:image/png;base64, iVBORw0KGgoAAAANSUhEUgAAAAUA AAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO 9TXL0Y4OHwAAAABJRU5ErkJggg==" alt="Red dot" /> ++