Please share your template file here. We will check it ASAP.
123.xlsx.zip (10.4 KB)
Since you are using some older version (i.e., Aspose.Cells for Java v8.5.2), so we cannot evaluate your issue using your older version. We recommend you to kindly upgrade to and try latest version/fix (Aspose.Cells for Java v21.11), it works fine as I tested using your template file. The second/third page do not show “#####” in the output PDF. I have also attached the output file for your reference.
out1.pdf (64.3 KB)
PS. please also make sure that the fonts used in the workbook are installed on your machine where you are processing the code.