|
10 | 10 | # counter-clockwise 90 degrees. |
11 | 11 | # *********** |
12 | 12 |
|
13 | | -frompathlibimportPath |
| 13 | +frompathlibimportPath |
14 | 14 |
|
15 | 15 | fromPyPDF2importPdfFileReader,PdfFileWriter |
16 | 16 |
|
17 | 17 |
|
18 | | -pdf_path=Path.home()/"github/realpython/python-basics-exercises/" \ |
| 18 | +pdf_path=Path.home()/"python-basics-exercises/" \ |
19 | 19 | "ch13-interact-with-pdf-files/practice_files/split_and_rotate.pdf" |
20 | 20 |
|
21 | 21 | pdf_reader=PdfFileReader(str(pdf_path)) |
|
28 | 28 | output_path=Path.home()/"rotated.pdf" |
29 | 29 | withoutput_path.open(mode="wb")asoutput_file: |
30 | 30 | pdf_writer.write(output_file) |
| 31 | + |
| 32 | + |
| 33 | +# *********** |
| 34 | +# Exercise 2 |
| 35 | +# |
| 36 | +# Using the `rotated.pdf` file you created in exercise 1, split each |
| 37 | +# page of the PDF vertically in the middle. Create a new PDF called |
| 38 | +# `split.pdf` in your home directory containing all of the split pages. |
| 39 | +# |
| 40 | +# `split.pdf` should have four pages with the numbers `1`, `2`, `3`, |
| 41 | +# and `4`, in order. |
| 42 | +# *********** |
| 43 | +importcopy |
| 44 | + |
| 45 | +pdf_path=Path.home()/"rotated.pdf" |
| 46 | + |
| 47 | +pdf_reader=PdfFileReader(str(pdf_path)) |
| 48 | +pdf_writer=PdfFileWriter() |
| 49 | + |
| 50 | +forpageinpdf_reader.pages: |
| 51 | +# Calculate the coordinates at the top center of the page |
| 52 | +upper_right_coords=page.mediaBox.upperRight |
| 53 | +center_coords= (upper_right_coords[0]/2,upper_right_coords[1]) |
| 54 | +# Create two copies of the page, one for the left side and one for |
| 55 | +# the right side |
| 56 | +left_page=copy.deepcopy(page) |
| 57 | +right_page=copy.deepcopy(page) |
| 58 | +# Crop the pages by setting the upper right corner coordinates |
| 59 | +# of the left hand page and the upper left corner coordinates of |
| 60 | +# the right hand page to the top center coordinates |
| 61 | +left_page.mediaBox.upperRight=center_coords |
| 62 | +right_page.mediaBox.upperLeft=center_coords |
| 63 | +# Add the cropped pages to the PDF writer |
| 64 | +pdf_writer.addPage(left_page) |
| 65 | +pdf_writer.addPage(right_page) |
| 66 | + |
| 67 | +output_path=Path.home()/"split.pdf" |
| 68 | +withoutput_path.open(mode="wb")asoutput_file: |
| 69 | +pdf_writer.write(output_file) |