date modified changes when adding tags to PDF files

Hello, I am using windows 10 and I am trying to organize a very large number of files scattered everywhere on my laptop. The files are a variety of different formats, PDF, word, excel, .txt, blackberry backup files (.bbb), audio and video files as well.

When I add a tag or a keyword within adobe acrobat and save the PDF file, the date modified and time changes to the current date and time. I do not want the date modified or date created to change when I add a tag or a keyword to the file properties.

I am looking for a system similar to what mac OSX has for its tagging file & folder system. I am wondering how I can achieve something similar to mac os x file/folder tagging system. Thank you

Simple: Buy a Mac.

In general ... when you modify a file, the file modification date shows the date of that modification. I did not know that the Mac behaved differently. It seems odd that it should, given that it's built from Unix.

I wonder, though: Why is the modification date relevant? If you really want a fixed, unchanging date for the file, but the date in the file name. That works on any computer.

because most of my PDF's have the modified date earlier than the create date so I want to use the modified date + time. In addition, the files are scattered everywhere so I want to tag most of them and then see the final folder structure to find duplicates and such

I think that what you want is not possible. The operating system changes the modification date when the file is modified. That's what the modification date is all about.

There are tools that will let you change the modification date to whatever you want.
That is ... make your file changes (and the mod. date changes).
Then change the mod. date to what you want.

Tedious.