pdf-redact-tools broken

According to wb:7457382ca5dfac33a6d238bffcf41f8c, pdf-redact-tools is broken in Tails 5.6:

Exact steps to reproduce the error

pdf-redact-tools -s file.pdf
pdf-redact-tools -m file.pdf

Actual result and description of the error

convert-im6.q16: attempt to perform an operation not allowed by the
security policy `PDF' @ error/constitute.c/IsCoderAuthorized/421.
convert-im6.q16: no images defined
`/home/amnesia/Desktop/a_pages/page-transparent.png' @
error/convert.c/ConvertImageCommand/3229.
Traceback (most recent call last):
  File "/usr/bin/pdf-redact-tools", line 217, in <module>
    main()
  File "/usr/bin/pdf-redact-tools", line 207, in main
    if pdfrt.explode(achromatic):
  File "/usr/bin/pdf-redact-tools", line 102, in explode
    filename_template = os.path.join(self.pages_dirname,
filenames[0].replace('-0.png', '-{}.png'))
IndexError: list index out of range