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Images in Blazor DocumentEditor component

28 Jul 2021 / 2 minutes 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.

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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.


Changing size

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

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

Text wrapping style

Text wrapping refers to how images fit with surrounding text in a document. Please refer to this page for more information about text wrapping styles available in Word documents.

Positioning the image

DocumentEditor preserves the position properties of the image and displays the image based on position properties. It does not support modifying the position properties. Whereas the image will be automatically moved along with text edited if it is positioned relative to the line or paragraph.

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