Python: mupdf: invalid key in dict

Question

I am writing below code to remove annotations from a pdf file and then save it to new pdf. However, I am getting RuntimeError: invalid key in dict. Below is the Code:

import fitz
import re
doc = fitz.open("test.pdf")
for i in range(doc.pageCount):
    page = doc[i]
    for annot in page.annots():
        page.delete_annot(annot)
    doc.save('test1.pdf')

Error: mupdf: invalid key in dict

RuntimeError: invalid key in dict

error screenshot

Please don't post screenshots (thank you for posting the real code though) — 2e0byo, Oct 11 '21 at 08:53
do you mean to have your `doc.save()` inside tthe for loop? did you mean to call `page.save()` if so? — 2e0byo, Oct 11 '21 at 08:54

score 0 · Answer 1 · answered Oct 11 '21 at 09:00

0

Assuming that doc type is dict

Your mistake is page = doc[i] because range return a number for examble:

for i in range(): # whatever:

the key (i) will be a number but dicts does not accept number it accept string.

The Solution

You need to convert dict data to index

import fitz
import re
doc = fitz.open("test.pdf")
for i in range(doc.pageCount):
    page = list(doc.values())[i]
    for annot in page.annots():
        page.delete_annot(annot)
    doc.save('test1.pdf')

answered Oct 11 '21 at 09:00

ELAi

170
2
8

thank you for your reply however, I now get "mupdf: cannot find startxref" and test1.pdf is not saved. – Sundaram Oct 11 '21 at 09:41
I just fixed the error you asked for :) – ELAi Oct 11 '21 at 13:20

Python: mupdf: invalid key in dict

1 Answers1