Spire.Office HotFix V1.6.5 released on January 4th this year, packed Spire.Doc V 4.1.19 which fixed doc to rtf bug and added a new feature.
Fixed:
Fix doc to rtf bug: float data in twip to point will cause invalid text lines.
Features:
Add Document.PageLayout event which will be fired when a new page is created during doc converting to image/pdf.
Download The new hotfix here:
http://www.e-iceblue.com/Download/download-office-for-net-now.html
Follow the link below to learn more about Spire.Office:
http://www.e-iceblue.com/Introduce/spire-office-for-net.html