Does PyMuPDF4LLM process a scanned page inside a mixed PDF?
PyMuPDF4LLM passed this mixed-PDF scenario: the scanned page was OCR'd and kept between the surrounding digital pages. The worksheet values were recovered, and one OCR sentence is visibly garbled without the page being skipped.
1 of 1 test case passed
Every test case in this scenario has a result.
The test case
Each test case is judged on its own: Pass, Fail, Not gradable, or Untested. The scenario result above is based on this test case.
Mixed pages — scanned page not skippedPassEvidence
Job KAL-ESR-4471 Kirkhollow Analytical Laboratories Ltd ## **Equipment service report** ##### **CLIENT** Braithe Estuary Partnership Estuary House, Vardenne Quay Braithe BR3 4LN |Job reference|**KAL-ESR-4471**| |---|---| |Date of visit|**29 January 2026**| |Engineer|**R. Tarbert**| |Instrument|**Kestrel 400 turbidity analyser**| |Location|**Vardenne Quay pumping station**| |Service interval|**Twelve months**| #### **Reported fault** Intermittent baseline noise on channel 2, reported by the Partnership on 21 January. The analyser had been running without attention since the annual service in January 2025. #### **Work carried out** The flow cell was removed, stripped and cleaned, and the pump tubing set replaced. The optical window was found to be lightly fouled on the inner face; it was cleaned rather than replaced, and should be inspected again at the next visit. The analyser was recalibrated against the two-point standards and left running on channel 2 for an hour before the site was handed back. The completed worksheet is bound in as page 2 of this report. KAL-ESR-4471 Page 1 of 3 FIELD SERVICE # Kirkhollow Analytical Laboratories Ltd Service worksheet |Job reference|KAL-ESR-4471|| |---|---|---| |Instrument serial|GK-2214-77|| |Engineer|R. Tarbert|| |Date|29·January 2026|| |CHECKS AND READINGS||| |Flow cell condition on arrival||Fouled, inner face<br>| |Flow cell pressure after service||2.4 bar<br>| |Zero drift over 30 minutes||0.003 mg/l<br>| |Span recovery against standard||99.4 per cent<br>| |Lamp hours at service||8,140| |Result<br>Calibration certificate SR-44|71/2|Pass| |Analil t<br>TIME ON SITE|t i o s e isit|| |Arrived||29 January 2026, 09:15| |Left||29 January 2026, 13:40<br>| |Chargeable time||4 hours 25 minutes| |Next service due||January 2027| |RECEIVED BY||| |Name|M. Cairney|| |Position|Duty operator, Vardenne Quay|| |Date|29 January 2026|| Engineer's signature Page 2 of 3 Service worksheet·KAL-ESR-4471 Job KAL-ESR-4471 Kirkhollow Analytical Laboratories Ltd ### **Parts fitted** |**Part**|**Code**|**Quantity**| |---|---|---| |Pump tubing set|PT-114|1| |Flow cell O-ring, 12 mm|OR-0912|2| |Inlet filter, 40 micron|IF-4004|1| ### **Declaration** The work described in this report was carried out to the standard set out in the service agreement. The analyser was left in service and calibrated. The next annual service falls due in January 2027. |Engineer|**R. Tarbert**| |---|---| |Countersigned|**Dr A. J. Prosser**| |Report issued|**2 February 2026**| KAL-ESR-4471 Page 3 of 3
Markdown output with the scanned page OCR'd in place
Copied from Output file (Markdown), lines 1–95
Open the Markdown file ↗| ✓ | Expected: The scanned page's text should appear in the output instead of being skipped.Found: It appears between the surrounding digital pages, and the worksheet values are recovered; one sentence on the page is visibly garbled. |
It is a pass, not a fail: the scanned page appears between the surrounding digital pages, and the worksheet values are recovered. A visible OCR glitch remains, but the page is present.
Visible OCR damage. A sentence in the scanned page is visibly corrupted, showing OCR damage rather than invented text.
Date formatting glitch. The first date is rendered with a middle dot instead of a space.
The scanned page has visible OCR corruption, so sentence-level fidelity is limited.
Configuration and setup
How this tool was set up for the run and what the test needed in place. Each row is a fact from the run's records; a fact the records do not hold is left out, not guessed.
How this scenario is graded
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Each test case gets one result per tool: Pass, Fail or Not gradable. A test case we haven't run yet shows Untested. There are no partial results.
- Pass: the tool did everything the test expected, and nothing it said contradicts the correct answer.
- Fail: at least one expected behaviour clearly didn't happen; the test case's result says which one and quotes the tool.
- Not gradable: our evidence couldn't settle the outcome (for example a record we needed is missing). It is never counted as a fail, and the test case's result says what's missing.
Where this sits in the benchmark
This page is one cell of a larger study: one tool, one scenario. Only this benchmark's frame appears here.
| Level | Name | Scope |
|---|---|---|
| Benchmark | Converting a complex PDF into clean Markdown with an open-source library → | 12 scenarios · 10 tools |
| Capability | Scanned Document OCR → | |
| Scenario | A document mixing digital and scanned pages → | |
| Tool | PyMuPDF4LLM → |
Global scenario definition → · Global capability definition → · PyMuPDF4LLM product page →
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