To export a Bitmap from the active document use
Application Menu -> Export -> as Bitmap. This will create a high resolution bitmap of the document content.
You may store it as png or jpg, depending on the extension you specify.
If no extension is specified the default png is used.
Note: IYOPRO Basic users will see a watermark that this diagram is made by IYOPRO. If you wish to get rid of the watermark please upgrade to at least IYOPRO Professional.