I didn’t import from Evernote, but to address your wider “plan” (in inverted commas because you may not have one, and that’s ok too!): it makes logical sense (in DT, but I would argue in life generally ) to have your reference material as independent files separate from your notes (I.e. you do actually want PDFs separate from the notes about them - both for access/storage reasons mentioned in this thread, but also because you might in future wish to refer to the same PDF across multiple notes).
If it was me, I’d be starting to think about my long-term file structure, and start a gradual process of heading towards that goal. Perhaps groups with specific PDFs in them, a new naming convention, etc. - whatever works for you. In the notes where the PDFs used to be, I’d then start linking to the PDFs as appropriate, to maintain the referencing you had in Evernote.
You don’t have to do this work all in one go - it can be overwhelming. You can just start a bit of tidying up for a few mins every day, or maybe schedule an hour a week. Or even just tidy files up as you handle them. I went the “blitz as much as possible in a week” route when I started, but you need time to be able to do that, and I never actually finished and still do admin every few weeks or so as I come across things that need sorting. I’m fine with that and I just try to make time if I come across files that need sorting out. It’s an investment in my future self to make life easier the next time I interact with that info.
I won’t talk about database structure here because that is a whole library of thinking by itself (there are lots of threads, or you can start a new one with your specific queries and I will probably reply to it as I love this topic ). The “Starter for 10” questions for you would be:
- How did you use Evernote (search, manual navigation, blind luck?), and do you want to replicate that in DT?
- Was there friction with some of your process that annoyed you? What worked well?
- What is the purpose of your database, and how will future you interact with it?
- How do you like to interact with other apps?
As an example, I like to navigate manually for the most part, so I need strong naming conventions for files and a rigid folder (group ) structure. I have therefore made rules around these that work for me. Some folks love tagging. Others just use search and have a big soup of all their files (the horror, but whatever works for you!). My “life admin” database is structured far more minutely than my research database. Life paperwork follows clearly divisible lines and can be subdivided fairly minutely (this is an energy bill, this is an Apple receipt for a game app, etc.), and I have assumed that if I am looking for a piece of life paperwork I might be stressed and not willing to search for very long, and structured my database to support that.
It can feel like “productive procrastination” to spend time thinking and researching about file structure and how best to make your databases (and computer in general) work for you, but the investment is very worthwhile in my opinion. You’re doing this work now to set your future self up for success and once you have processes that are unique to you, everything ticks along nicely (and if it doesn’t, you can just tinker with your set-up!).