Change existing pdf-file to half of it an rotate?

[Rapid1898-code]

Hello -
i have the attached PDF-Files and the IST-file should be changed to the SOLL-file -
Is this somehow possible using pymupdf?
(especially the splitting of the IST-file and building the new format on the half of the site)

SOLL_1448_71877.pdf
IST_1448_71877.pdf

[JorjMcKie]

Ja, das geht schon ... mit ein bisschen Fummelei.

Yes, this can be done. The only open aspect is where do we / should we get this text from ...

... cut it out and enlarge from the neighboring half page?

[JorjMcKie]

Here is something for you to work with ...

import pymupdf

ist = pymupdf.open("IST_1448_71877.pdf")
soll = pymupdf.open()  # output PDF

# get color of "10. AUGUST 2026" in first page
ist0 = ist[0]

blocks = ist0.get_text("dict", flags=0)["blocks"]
spans = [s for b in blocks for l in b["lines"] for s in l["spans"]]
color = 0
for s in spans:
    if s["text"].startswith("10. "):
        color = pymupdf.sRGB_to_pdf(s["color"])

# now write text to bottom of last page with the correct color
ist2 = ist[2]
ist2_r = ist2.rect

ist2.insert_text(  # the numbers are trial and error
    (ist2_r.width / 3, ist2_r.height * 0.9),
    "10.  AUGUST 2026",
    color=color,
    fontsize=20,
    fontname="tiro",  # this font comes close to the original
)

# OK, source file prepared, now patchwork the SOLL file
prect = ist[1].rect  # second page rectangle used

insert in SOLL
soll.insert_pdf(ist, from_page=1, to_page=1)

# before this, make new page from 2 half pages
# (first page upside down on top, second page normal at bottom)
page = soll.new_page(0, width=prect.width, height=prect.height)
# make rectangles "upper" and "lower"
upper = +page.rect
upper.y1 /= 2
lower = +page.rect
lower.y0 = upper.y1

# insert IST pages into these rectangles
# we must stretch a little to get the full page width covered.
page.show_pdf_page(
    upper, ist, 2, rotate=180, keep_proportion=False
)  # first page upper half
page.show_pdf_page(lower, ist, 0, keep_proportion=False)  # second page lower half

soll.ez_save("mein-soll.pdf")

[Rapid1898-code]

Thanks a lot for your help!
This looks great!