replace text in PDF files

[kyunghoon3001540549cd]

I want to replace text in PDF files

and found solutions

but doesn't work.

please help me...

i using pymupdf's xref stream and get this

BT
0 0 0 0  scn
/C0_0 1 Tf
13.72 0 0 14 14.0156 76.1611 Tm
<0D1804E10632>Tj
/C0_1 1 Tf
-0.01 Tc 0.01 Tw 7.84 0 0 8 25.5322 57.7412 Tm
<001100120011000F0011001100110011000F0011001100110011>Tj
0.287 0.176 0.138 0  scn
/C0_0 1 Tf
-1.469 0.001 Td
<002E001B>Tj
0 -1.456 TD
<0026001B>Tj
0 -1.506 TD
<0038001B>Tj
0 0 0 0  scn
/C0_1 1 Tf
1.469 -0.001 Td
[<004500460054004A0048004F00430042>41 <00540046000F0044>17 <0050000F004C0053>]TJ
-1.469 -2.183 Td
<048304DD0628000108BF056909260001081905FC04B300010A7F0A57063200010011001100110001001100110011>Tj
1.214 3.689 Td
[<004500460054004A0048004F00430042>41 <00540046004C>19 <00500053>30.1 <0046004200210048004E0042>13.1 <004A004D000F0044>17 <0050004E>]TJ
0.287 0.176 0.138 0  scn
/C0_0 1 Tf
8.82 0 0 9 55.3369 76.1611 Tm
<06630A570A490581>Tj
0 0 0 0  scn
/C0_1 1 Tf
6.86 0 0 7 165.2456 107.1807 Tm
<05BE04B30561000108DA09140471000106630A570A4B07EC0A49091D>Tj
ET

and using this code

def chunks(lst, n):
    """Yield successive n-sized chunks from lst."""
    for i in range(0, len(lst), n):
        yield lst[i:i + n]

s = '048304DD0628000108BF056909260001081905FC04B300010A7F0A57063200010011001100110001001100110011'
ns = [29 + int(c, 16) for c in chunks(s, 4)]

print(bytes(ns))

but return error

Traceback (most recent call last):
  File "convert.py", line 10, in <module>
    print(bytes(ns))
ValueError: bytes must be in range(0, 256)

How do I solve this problem, and how do I encode the reverse text

[try67]

Try asking in a forum about Python. This forum is about Adobe Acrobat.