Hi Rui Silva,
Thank you for writing.
Currently, we do not have a PDF Viewer component in the RadControls for WinForms suite. Such a feature request is already made by another user of ours. Feel free to follow
this link, where you can add your vote for this request. Once this request gather more popularity our team will consider the implementation of such a component.
I hope that you find this information helpful. Should you have any other questions or suggestions, do not hesitate to contact us.
Kind regards,
Stefan
the Telerik team