Conversion to Image from PDF, WORD OR EXCEL

Hello, Tovino, 

Telerik UI for WinForms suite offers the following controls to load the content and display pdf, Word or Excel files:

- RadPdfViewer: a control that can natively visualize PDF documents straight in your application. It comes with a predefined UI that is intuitive and provides the means for utilizing the features of the control. You can find more information here: https://docs.telerik.com/devtools/winforms/controls/pdfviewer/overview

- RadRichTextEditor: a control that is able to display and edit rich-text content including formatted text arranged in pages, paragraphs, spans (runs), tables, etc. It supports different providers for importing/exporting different document types. DocxFormatProvider makes it easy to import and export RadRichTextEditor to/from DOCX format, preserving the entire document structure and formatting: https://docs.telerik.com/devtools/winforms/controls/richtexteditor/import-export/docx/docxformatprovider 

- RadSpreadsheet: a control that enables you to easily open or save documents from the most common spreadsheet formats: https://docs.telerik.com/devtools/winforms/controls/spreadsheet/import-export 

Since each of the file formats has its own document specifics, a separate control is needed to properly show the document content. 

Converting different documents to an image is not purposed to be built-in functionality of the above mentioned controls. However, the possible approach that I can suggest in this case is to export the content of the respective control to a pdf file. Then, using the API that RadPdfViewer offers you can load the exported pdf document and generate the images for each page in the pdf: https://docs.telerik.com/devtools/winforms/controls/pdfviewer/export-to-image 

Please refer to the following help articles demonstrating how export the content in RadRichTextEditor and RadSpreadsheet to pdf:
https://docs.telerik.com/devtools/winforms/controls/richtexteditor/import-export/pdf/pdfformatprovider

https://docs.telerik.com/devtools/winforms/controls/spreadsheet/import-export 

I hope this information helps. If you need any further assistance please don't hesitate to contact me. 

Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik