Look at measure 12 (the high B section). If the PDF shows a full barre (VI), try using your thumb on the low E string (6th string) and a half-barre on the top three strings. Write in new numbers.

: Offers several versions, including a notable transcription of Atahualpa Yupanqui’s solo guitar arrangement. MuseScore

A better PDF is typeset in software like Finale, Sibelius, or LilyPond. The stems are straight, beams are even, and slur markings curve smoothly.