Marc-André Bombeck df6d20b696 fix(documents): read a PDF the server cannot render by its text layer ...

On a host whose CPU cannot run the page renderer (x64 without AVX2, arm64
musl without LSE/RCpc), every AI read of a PDF for a provider that only
takes images failed with "Scanning PDFs needs a Claude vision provider",
which says nothing about the cause. Most medical PDFs are produced
digitally and carry every word in their text layer, which pdf.js reads
without rendering.

`prepareVisionInput` now answers a text read (`mode: "text"`) when the
renderer is unavailable on this host, the provider cannot take the PDF
whole and the PDF has a usable text layer. Summary, suggest and the
background summary send that text through their existing text mode;
"Read with AI" and the index backfill write it as the local text index it
is, with no provider call; the automatic index leaves it to its local path.
`planVisionReads` does the same for the extraction and the lab scan: text
reads by page group, with anchored provenance, and the pages without a text
layer reported as `extractionIncomplete` on a document and as `unreadPages`
on a lab scan. A supplement label PDF is read from its text layer too.

A scan on such a host now answers `documents.inbound.pdfRendererUnavailable`
and `labs.ocr.pdfRendererUnavailable` (422): this server's processor cannot
run the page renderer, so a scanned PDF can only be read by a provider that
takes PDF files directly, or as photos. The `pdfNeedsAnthropic` codes are no
longer emitted, since with a working renderer every provider reads a PDF;
the recorded index outcome keeps its `pdf-needs-anthropic` value with
corrected copy.

The extraction path no longer folds a render failure of one document into
the capability error: like `prepareVisionInput` since #776 it reports
"The PDF pages couldn't be rendered for scanning." (`extractFailed`), and
the lab scan answers `labs.ocr.extractFailed`.

Hosts that render, and providers that take PDFs whole, are unchanged.

Refs #1311

2026-11-03 22:07:22 +01:00

3.3 MiB

Raw Blame History