New problema with Big Sur M1

[Giampiero5E4B]

Hello to everyone

This is my first experience with Mac. I have new M1

I downloaded Acrobat with 7 days free.

I tried to modify a text in the PDF or better some numbers. All rights but when I save and then I open the file the numbers I had changed are different from my change. 

Is it a problem of Acrobat, a problem of Acrobat on M1 or what?

Thanks

[try67]

PDF files were not really meant to be edited directly like that. Doing so will always be tricky and could cause a lot of issues. I don't think this has anything to do with the fact your computer has an M1 chip or the Big Sur OS, it's a limitation of the file format itself. If you have access to the original document used to create the PDF then you should edit that, and then create a new file from it.