Licensing Issue

[cgscimbspire]

Hi Support,

Recently we face licensing issue in our Dev environment, the PDF generated contain the watermark.

So far there is no issue in Production (same license key being used in new Dev machine)

Recent changes:
- Changed new machine for Dev
- Upgraded VS 2022 to VS 2026

Spire.PDF version : 11.2.4
Licensing :
- Spire.PDF Pro Edition
- Version 11.9
- Developer Subscription
- Expiry 2026-10-22T00:00:00Z

[cgscimbspire]

Hi Support,

Recently we face licensing issue in our Dev environment, the PDF generated contain the watermark.

So far there is no issue in Production (same license key being used in new Dev machine)

Recent changes:
- Changed new machine for Dev
- Upgraded VS 2022 to VS 2026

Spire.PDF version : 11.2.4
Licensing :
- Spire.PDF Pro Edition
- Version 11.9
- Developer Subscription
- Expiry 2026-10-22T00:00:00Z

Hmm...regenerated after some time, the watermark disappeared

[Lisa.Li]

Hello,

Thanks for your letter.
Kindly note that the "Spire.PDF Pro Edition Developer subscription" is licensed for use by up to 1 developer and 1 deployment address, which are identified and validated via MAC addresses. When the license is used on machines beyond this limit, it will not be effective, the output file will have the warning messages. We confirmed your current usage has exceeded this limit.
Currently, the server you initially used is still valid, but for the new server, it will not take effect. You can purchase another license, and our OEM type has no restrictions, you can learn more from the link below.
https://www.e-iceblue.com/Buy/Spire.PDF.html
If you have any other questions, just feel free to contact.

Sincerely,
Lisa
E-iceblue support team