Is it recommended to use Iframe for document Preview?

Hi Colleagues,

I have various documents (docx, txt, pdf, ppt, xslx) that i would like to open in a preview mode.

The only Viewer control i could find in UI5  was for Pdf( PDF Viewer).

The first solution that came up was using iframe tag of sap.ui.core.HTML to embed the document :

var oHtml = new sap.ui.core.HTML();

oHtml .setContent("<div  style='width: 100%; height: 100%; overflow:scroll' ><iframe id='tcf' style='width: 500px; height: 500px; overflow:scroll' src='http://help.sap.com/hana/hana_dev_en.pdf'></iframe></div>");

Just want to understand, is it advisable to use iframe to preview documents? Are there any security issues with its usage?

Your help is appreciated.

Thanks,

Aastha