--- title: Usage position: 2 seo_title: Guidelines for Using the PDFViewer Component seo_description: Get the knack of the Telerik and Kendo UI PDFViewer and learn how to use and implement the component by following the instructions and recommendations in the user guidelines created by our designers. --- ## Usage Guidelines The Telerik and Kendo UI PDFViewer requires you to follow some basic principles when using the component. ### Tools Grouping When customizing the tools in the PDFViewer component, arrange them thoughtfully into semantic groups and use spacer elements between them to separate them visually. This not only reduces the cognitive load but also improves the overall user experience. ![A Telerik and Kendo UI PDFViewer demonstrating a correct grouping of the tools](images/components-pdfviewer-usage-tools-grouping-do.png "Group the toolbar tools when working with the Telerik and Kendo UI PDFViewer.") ![Incorrectly used Telerik and Kendo UI PDFViewer that lacks semantic grouping of the tools](images/components-pdfviewer-usage-tools-grouping-dont.png "Don't use the Telerik and Kendo UI PDFViewer without semantically grouping the tools.") ### Canvas Height When using the PDFViewer component, consider the available space and provide sufficient vertical height for the canvas of the UI component. This allows you to achieve a comfortable document-viewing experience. ![A Telerik and Kendo UI PDFViewer with sufficient canvas height](images/components-pdfviewer-usage-canvas-height-do.png "Use a canvas height that allows comfortable document viewing in the Telerik and Kendo UI PDFViewer.") ![Incorrect use of a Telerik and Kendo UI PDFViewer configured with insufficient canvas height](images/components-pdfviewer-usage-canvas-height-dont.png "Don't reduce the canvas too much when working with the Telerik and Kendo UI PDFViewer.")