No—you also need vocabulary, listening, and reading practice. However, verb conjugation is ~30% of N5 grammar. A PDF is essential but not sufficient.

Avoid them. Romaji-only PDFs delay kana/kanji mastery. Always choose PDFs with hiragana and kanji.

A superior PDF includes a "Common Errors" section next to each conjugation rule. Here is an excerpt of what a well-designed PDF page looks like for one Group 1 verb, one Group 2 verb, and the irregulars:

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