Need JAVA 1.7 Version JAR files for PDF conversion

Hi, While converting and merging the file into PDF, Thumbs.db file is getting generated
Below are the files used:
2-19110401 Invoice.pdf (322.6 KB)
2-19110401 Invoice.pdf (322.6 KB)
19110401 Support.pdf (108.7 KB)

After calling ASPOSE APIs, thumbs.db file is getting generated, which i cannot upload here. Can you pl let me know the fix for this issue at the earliest.

Thanks

@RicohEADUser,

Can you please share complete source code to further investigate this issue in details.