Bueno, yo mismo lo he conseguido por si a alguien le sirve:
https://s3.amazonaws.com/geekdo-files.com/bgg290290?response-content-disposition=inline%3B%20filename%3D%22TKID2_Reglamento.pdf%22&response-content-type=application%2Fpdf&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJYFNCT7FKCE4O6TA%2F20210131%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20210131T142310Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=ee4f94008048c22917d65b6c03d0ab94ed7981240e4ede753c910a690b2cb319
https://s3.amazonaws.com/geekdo-files.com/bgg290290?response-content-disposition=inline%3B%20filename%3D%22TKID2_Reglamento.pdf%22&response-content-type=application%2Fpdf&X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIAJYFNCT7FKCE4O6TA%2F20210131%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20210131T142310Z&X-Amz-SignedHeaders=host&X-Amz-Expires=120&X-Amz-Signature=ee4f94008048c22917d65b6c03d0ab94ed7981240e4ede753c910a690b2cb319