Indirectly, yes. If the PDF contains a clean 1:1 grid (rare), you can scan and digitize. However, most Vol 2 PDFs are meant for manual drafting. For direct CAD, look for a vectorized version (DXF/AAMA), not a scanned book.
Typically, no. European patternmaking texts usually draft without seam allowances. You are expected to add 1.5cm for fashion fabric and 0.7cm for lining. Check the introductory chapter of your PDF. fashion patternmaking techniques vol 2 pdf
Assuming you secure a legitimate copy of a Volume 2 textbook, here are three specific techniques you should turn to immediately. Indirectly, yes