''' Summing pages. '''
from fpdf import FPDF
from PIL import Image
from PIL import Image, ImageOps


''' Create FPDF object. '''

pdf = FPDF('L', 'mm', format='A4') # 148 × 210
pdf_height = 210
pdf.set_margin(0)

''' Load image. '''
# Open image and get height.
img = Image.open('drawng/IMG_1069.jpg')
width, height = img.size

# Define iterations:
iterations = 20
# Step for image:
step = width / iterations # Step = amount of pixels to reveal in one iteration.


''' Loop. '''
for i in range(1, iterations + 1):
    pdf.add_page()


    bordered = ImageOps.expand(img, border=30, fill=(0,0,0))
    bordered = bordered.crop((0, 0, step * i, height))
    bordered.save(f'temp{i}.png' )





    pdf.image(f'temp{i}.png', x = 0, y = 0, h = pdf_height+1)



''' Save PDF. '''

pdf.output('16.pdf')