Modified PDF Getting Identified by system


I have recently modified an excel file and converted the same to PDF. After modifying, I have uploaded the same to an online portal.

However, that online portal system is identifying that i have uploaded a modified file.

Could you please let me know how to avoid my modified PDF to be identified in the portal? I mean, no system should be able to detect that it is a modified file.

Is there any way I can make my PDF file unidentified in the online portal as a modified file?

Thank you,

Siva Chaitanya.


if you didn’t modify the document after converting it to PDF, I have no clue how the system you uploaded it to could identify any modifications, technically you created a new PDF from an excel file and none of the excel files history is contained in the PDF.

Best regards