need help with Paypal

hi I need help and like to know how I can sell crochet pattern as an pdf file on my website. I need to sell my crochet pattern, so it´s gonna be a page category menu. I wish that all payments must run with Paypal, could this be possible, without installing for example woocommerse ? My website is: http://garnmasken.dk I hope you can help me with it, because it is very important for me, that this is possible. Best regards Anne-Pia Hansen info[at]garnmasken[dot]dk