fix per slide timeout ignoring base config

python/packages/officeconvert/src/officeconvert/conversion.py

@@ -102,6 +102,7 @@ def render_pdf_to_images(
     image_format: str = "png",
     timeout_s: int = 120,
     total_pages: int | None = None,
+    operation_timeout_s: int | None = None,
     page_progress_callback: PageProgressCallback | None = None,
 ) -> list[Path]:
     """Render each PDF page into an image using Poppler's `pdftoppm`.
@@ -146,7 +147,7 @@ def render_pdf_to_images(
             raise RuntimeError(
                 "Poppler rasterization timed out after "
                 f"{timeout_s} seconds while rendering {pdf_path.name}; "
-                "increase conversion PDF render timeout or lower image DPI"
+                "increase conversion PDF render timeout cap or lower image DPI"
             ) from exc
         if completed.returncode != 0:
             raise RuntimeError(
@@ -181,11 +182,16 @@ def render_pdf_to_images(
                     timeout=timeout_s,
                 )
             except subprocess.TimeoutExpired as exc:
+                timeout_context = (
+                    f"per-page timeout {timeout_s}s "
+                    f"(total operation cap {operation_timeout_s}s for {total_pages} pages)"
+                    if operation_timeout_s is not None
+                    else f"per-page timeout {timeout_s}s"
+                )
                 raise RuntimeError(
-                    "Poppler rasterization timed out after "
-                    f"{timeout_s} seconds while rendering page {page_index} "
-                    f"of {pdf_path.name}; increase conversion PDF render timeout "
-                    "or lower image DPI"
+                    "Poppler rasterization timed out while rendering page "
+                    f"{page_index}/{total_pages} of {pdf_path.name}; "
+                    f"{timeout_context}. Increase timeout settings or lower image DPI."
                 ) from exc
             if completed.returncode != 0:
                 raise RuntimeError(
@@ -300,8 +306,10 @@ def convert_pptx_to_slidedeck(
         timeout_s=_compute_page_timeout(
             total_timeout_s=pdf_to_images_timeout,
             page_count=slide_count,
+            base_timeout_s=pdf_to_images_base_timeout_s,
         ),
         total_pages=slide_count,
+        operation_timeout_s=pdf_to_images_timeout,
         page_progress_callback=lambda current, max_pages: _emit_progress(
             progress_callback,
             PHASE_PDF_TO_IMAGES,
@@ -337,12 +345,17 @@ def _compute_adaptive_timeout(
     return max(1, bounded_timeout)
 
 
-def _compute_page_timeout(*, total_timeout_s: int, page_count: int) -> int:
+def _compute_page_timeout(
+    *,
+    total_timeout_s: int,
+    page_count: int,
+    base_timeout_s: int,
+) -> int:
     """Split total PDF raster timeout into a bounded per-page timeout."""
     if page_count <= 0:
         return max(1, total_timeout_s)
     timeout = (total_timeout_s + page_count - 1) // page_count
-    return max(15, timeout)
+    return max(base_timeout_s, timeout)
 
 
 def _emit_progress(