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fix: handle None or zero jbig2_page_group_size in extract_images_jbig2

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Co-authored-by: aider (openrouter/anthropic/claude-sonnet-4) <aider@aider.chat>
This commit is contained in:
James R. Barlow
2025-12-21 12:21:47 -08:00
co-authored by aider
parent 9535b52d06
commit cdb976db41
1 changed files with 6 additions and 1 deletions
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src/ocrmypdf/optimize.py
+6 -1
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@@ -374,9 +374,14 @@ def extract_images_generic(
def extract_images_jbig2(pdf: Pdf, root: Path, options) -> dict[int, list[XrefExt]]:
"""Extract any bitonal image that we think we can improve as JBIG2."""
# Calculate local jbig2_page_group_size using the same logic as optimize()
jbig2_page_group_size = options.jbig2_page_group_size
if jbig2_page_group_size is None or jbig2_page_group_size == 0:
jbig2_page_group_size = 10 if options.jbig2_lossy else 1
jbig2_groups = defaultdict(list)
for pageno, xref_ext in extract_images(pdf, root, options, extract_image_jbig2):
group = pageno // options.jbig2_page_group_size
group = pageno // jbig2_page_group_size
jbig2_groups[group].append(xref_ext)
log.debug(f"Optimizable images: JBIG2 groups: {len(jbig2_groups)}")