pdf source code：
src.zip (4.4 KB)
origin pdf:
市图书馆门前口袋公园建设项目建议书编制委托合同 (1).PDF.zip (3.0 MB)
converted error:
Caused by:com.aspose.pdf.internal.ms.System.l7f: Page is null com.aspose.pdf.devices.ImageDevice.lI(Unknown Source) com.aspose.pdf.devices.PngDevice.processToBufferedImage(Unknown Source)
Please have a check.
It seems you are encountering a NullPointerException when trying to convert a PDF document using Aspose.PDF. This issue has been recognized and logged as a bug in the Aspose issue tracking system, specifically under the identifier PDFJAVA-41530. The development team has confirmed that they were able to reproduce the issue in their environment.
The good news is that this issue has been addressed in a later version of the Aspose.PDF for Java library. You can resolve the problem by updating to Aspose.PDF for Java 22.7 or a more recent version. This update includes the necessary fixes that should prevent the error you are experiencing.
If you continue to face issues after updating, please feel free to reach out for further assistance.
Sources:
[1]: Landray RDM 163649 Convert Effect