How to Remove Metadata from PDF on Mac and Windows

Hi, can medical PDF’s be altered without showing a modification date other than the original creation date? Or can hospital servers have a way to protect themselves from this liability by allowing them to hide such potential risks? My record of my pet was altered and I want to proof it.

How can I remove the created and last modified date from a pdf file?

Can remove too the app name that were used to create that Pdf? like indesign, Microsoft, OpenoOffice?

small thingm you need to pay for it to be without a watermark...

My old MacBook has OS X 10.11.6. the application requires OS X 10.12 or later. Is there any other way to remove the Metadata from a pdf?

Does this tactic work against Artificial Intelligence? I have been trying to bounce off ideas to beat an automated system by encrypting the metadata

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