From paper to project
Make folders by activity rather than one per download.
Keep A4 or Letter and the language in each filename.
Separate trials from final files with explicit names.
Keep a source and use-permission note for every resource.
Open the PDF before printing and check size and page count.
Back up the version you actually used.
Check it with an example
A name such as labels-en-a4.pdf tells you the topic, language and size. final-final2.pdf does not help repeat a print.
If it does not turn out as expected
Do not remove attribution while renaming. Unknown terms on an outside file are not permission to redistribute it merely because it was free.
