I'm using Spire.Office for .NET, installed through nuget. When i ugrade Spire.Offcie from version 8.9 to version 9.9 with a new License, the watermark appears in any PDF file have more than 10 pages. But when i'm use the old license (the one with version 8.9), the watermark disappear. What happened? Is there any thing wrong with license file?
Note: I compared the old and new license, difference between them is the new one have a line Serial Number, while the old license didn't. Furthermore the licence line in the new one have Version="1.4", while the old one is 1.3
I look forward to receiving your response.