Images in Blazor DocumentEditor Component

21 Oct 20211 minute to read

Blazor Document Editor supports common raster format images like PNG, BMP, JPEG, and GIF. You can insert an image file or online image in the document using the InsertImage() method.


Image files will be internally converted to base64 string. Whereas, online images are preserved as URL.

Image resizing

Document editor provides built-in image resizer that can be injected into your application based on the requirements. This allows you to resize the image by dragging the resizing points using mouse or touch interactions. This resizer appears as follows.

Image Resizing in Blazor DocumentEditor

Changing size

Document editor expose API to get or resize the selected image. Refer to the following sample code.

int height = await documentEditor.Selection.ImageFormat.GetHeight();
int width = await documentEditor.Selection.ImageFormat.GetWidth();
documentEditor.Selection.ImageFormat.Resize(width + 10, height + 10);

You can also explore our Blazor Word Processor example to know how to render and configure the document editor.