Hello,
Thanks for your inquiry and sorry for late reply on weekend.
Are you still getting the same error when you try the latest Spire.Doc v9.4.18? To help us further analyze, could you please provide your input file and your test code? Thanks in advance for your assistance.
Besides, I checked our records and found that the license you purchased for Spire.Doc has expired on 10/28/2020. This means that your license is no longer valid for the versions of Spire.Doc released after 10/28/2020. Therefore, when you are using the latest Spire.Doc v9.4.8 released on 4/30/2021, the evaluation warning messages will appear on the result file.
If you want to use the latest Spire.Doc without any evaluation warning messages, please contact our sales team (
sales@e-iceblue.com) to renew your license.