A PDF is a reference, not a teacher. If you simply scroll through 2500 pages, you will forget everything by page 50. Here is the "Foreigner’s Method" for conquering the 2500 kanji PDF.
The open-source community has compiled a massive 2,500-kanji spreadsheet that can be exported to PDF. Unlike rigid dictionaries, this allows you to sort by frequency of use. How to get it: Search for "Kanji Kohii 2500 list" – it is often available as a downloadable CSV/PDF via Anki shared decks. kanji dictionary 2500 for foreigners learning japanese pdf