bug: applying redactions sometimes fails with only Gray, RGB, and CMYK colorspaces supported #155

mahlzahn commented 2026年03月18日 11:15:49 +01:00

Description

Traceback

src/document.py:173: in save
 mupdf_page.apply_redactions(
/usr/lib/python3.14/site-packages/pymupdf/__init__.py:10770: in apply_redactions
 rc = page._apply_redactions(text, images, graphics) # call MuPDF
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
/usr/lib/python3.14/site-packages/pymupdf/__init__.py:9929: in _apply_redactions
 success = mupdf.pdf_redact_page(page.doc(), page, opts)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
doc = <mupdf.PdfDocument; proxy of <Swig Object of type 'mupdf::PdfDocument *' at 0x7fea1fe92b70> >
page = <mupdf.PdfPage; proxy of <Swig Object of type 'mupdf::PdfPage *' at 0x7fea1fdc16b0> >, opts = (black_boxes=0 image_method=2 line_art=2 text=0)
 def pdf_redact_page(doc, page, opts):
 r"""Class-aware wrapper for `::pdf_redact_page()`."""
> return _mupdf.pdf_redact_page(doc, page, opts)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
E mupdf.FzErrorArgument: code=4: only Gray, RGB, and CMYK colorspaces supported

Examples for failing documents

• samples_artifex/foo0-ge-64k.pdf

How to reproduce with PyMuPDF

document = pymupdf.Document("tests/data/samples_artifex/foo0-ge-64k.pdf")
page = document[0]
page.add_redact_annot((140, 0, 150, 1))
page.apply_redactions()

Upstream issues

https://github.com/pymupdf/PyMuPDF/issues/4943

## Description ### Traceback ```py src/document.py:173: in save mupdf_page.apply_redactions( /usr/lib/python3.14/site-packages/pymupdf/__init__.py:10770: in apply_redactions rc = page._apply_redactions(text, images, graphics) # call MuPDF ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ /usr/lib/python3.14/site-packages/pymupdf/__init__.py:9929: in _apply_redactions success = mupdf.pdf_redact_page(page.doc(), page, opts) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ doc = <mupdf.PdfDocument; proxy of <Swig Object of type 'mupdf::PdfDocument *' at 0x7fea1fe92b70> > page = <mupdf.PdfPage; proxy of <Swig Object of type 'mupdf::PdfPage *' at 0x7fea1fdc16b0> >, opts = (black_boxes=0 image_method=2 line_art=2 text=0) def pdf_redact_page(doc, page, opts): r"""Class-aware wrapper for `::pdf_redact_page()`.""" > return _mupdf.pdf_redact_page(doc, page, opts) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ E mupdf.FzErrorArgument: code=4: only Gray, RGB, and CMYK colorspaces supported ``` ### Examples for failing documents - [samples_artifex/foo0-ge-64k.pdf](https://github.com/ArtifexSoftware/tests/blob/master/pdf/foo0-ge-64k.pdf) ### How to reproduce with PyMuPDF ```py document = pymupdf.Document("tests/data/samples_artifex/foo0-ge-64k.pdf") page = document[0] page.add_redact_annot((140, 0, 150, 1)) page.apply_redactions() ``` ## Upstream issues https://github.com/pymupdf/PyMuPDF/issues/4943