添加图像下载jsPDF时出现错误

Question

我正在使用以下html

#takes the input for courses
class Course():
 def __init__(self,core,elec1,elec2):
 self.core = core
 self.elective1 = elec1
 self.elective2 = elec2

print("___course-details___")
#core courses ---
print("--available-core-courses--")
print("(1.) __OOP__")
print("(2.) __COA__")
print("(3.) __SSC__")

co = raw_input("Choose any above course")
if co is "1":
 core = "OOP"
elif co is "2":
 core = "COA"
else:
 core = "SSC"
#Elective courses ---
print("Choose two elective courses")
print("(1.) __PTSP__","(2.) __YOGA__","(3.) __POC__")
el1 = raw_input("elective 1 : ")
el2 = raw_input("elective 2 : ")            

我需要打印选项并下载包含图表，图像，表格和HTML内容的pdf选项。

任何人请帮助我如何下载PDF格式并在javascript中打印。

先谢谢