What is a .prin file?

Understanding a .PRN file is important because file formatting, printing outputs, and document compatibility can directly affect workflow accuracy. Whether it’s digital files, official records, or printed documentation, checking the right format first helps avoid errors and wasted time. In a similar way, people handling official verification or document-related tasks often prefer reviewing trusted details before moving forward.

If someone is looking for broader NBI-related guidance, requirements, or processing information, this resource https://nbiclearancce.com/ can be helpful. Proper preparation always makes document handling smoother and more efficient.

I realize this is an older thread but I think some people don’t realize the .prin file stores all kinds of info related to AI features in Premiere. So… even if you delete it, or turn off Media Analysis, this file will get recreated if, for example, you used an AI feature in your Premiere project, such as Scene Edit Detection, or Enhance Sound, or Remix Music, or Auto Reframe to 9x16, etc. I don’t know why anyone would want to NOT use media analysis because it enables the use of the Search panel which is amazing (for me anyway). The .prin file enables faster performance in Premiere, and keeps the Project file itself lighter by storing AI info in a separate sidecar file. If you used any AI features in Pr, then delete that .prin file (or moved the project and don't take the .prin file too) then your performance in Pr will be temporarily slower when you re-open that project...while it rebuilds the .prin data so your enhanced speech or remix track or AI Masking effect works correctly every time without having to use more resources to recreate it the next time your playhead hits it. Hope this helps!

Just wanted to say, after a couple of months of allowing .prin files etc, I found that yes, it does slow PPro down when it's analyzing etc, but once it's done, it's back to normal. After you allow yourself some time to let the application do this, you're GTG. 

It makes only one .prin file per the most active project file. So, IMO, not as messy as I thought it would be at first. And I've been using the AI search feature, and in projects with large amounts of source files, it has become handy at times. It's not perfect of course, and definitely leaves much to be desired, but it works enough that I've found it to be helpful. 
So, for the time being, I've come to terms with these additional processes and resulting file. Just give it a try and you might come to the same conclusion. 

This is mad annoying

Don't worry y'all.  They're gonna get it fixed at the same time the tackle the "Adobe Premiere Pro Audio Previews" folder issue.

I also vote for these files to go into their own folder, just like auto-save or cache files. Please and thank you.

I have the same question...