Allows a user to set 0 to disable the limit of maximum pixels during OCR operations

docs/advanced_usage.md

@@ -437,7 +437,7 @@ with Prometheus, as it exports metrics. For details on its capabilities,
 refer to the [Flower](https://flower.readthedocs.io/en/latest/index.html)
 documentation.
 
-Flower can be enabled with the setting [PAPERLESS_ENABLE_FLOWER](configuration/#PAPERLESS_ENABLE_FLOWER).
+Flower can be enabled with the setting [PAPERLESS_ENABLE_FLOWER](configuration.md#PAPERLESS_ENABLE_FLOWER).
 To configure Flower further, create a `flowerconfig.py` and
 place it into the `src/paperless` directory. For a Docker
 installation, you can use volumes to accomplish this:

docs/configuration.md

@@ -766,6 +766,8 @@ but could result in missing text content.
     If unset, will default to the value determined by
     [Pillow](https://pillow.readthedocs.io/en/stable/reference/Image.html#PIL.Image.MAX_IMAGE_PIXELS).
 
+    Setting this value to 0 will entirely disable the limit.  See the below warning.
+
     !!! note
 
         Increasing this limit could cause Paperless to consume additional

src/paperless/models.py

@@ -151,7 +151,7 @@ class ApplicationConfiguration(AbstractSingletonModel):
     max_image_pixels = models.FloatField(
         verbose_name=_("Sets the maximum image size for decompression"),
         null=True,
-        validators=[MinValueValidator(1_000_000.0)],
+        validators=[MinValueValidator(0.0)],
     )
 
     color_conversion_strategy = models.CharField(

src/paperless_tesseract/parsers.py

@@ -293,20 +293,14 @@ class RasterisedDocumentParser(DocumentParser):
                     f"they will not be used. Error: {e}",
                 )
 
-        if self.settings.max_image_pixel is not None:
+        if (
+            self.settings.max_image_pixel is not None
+            and self.settings.max_image_pixel >= 0
+        ):
             # Convert pixels to mega-pixels and provide to ocrmypdf
             max_pixels_mpixels = self.settings.max_image_pixel / 1_000_000.0
-            if max_pixels_mpixels > 0:
-                self.log.debug(
-                    f"Calculated {max_pixels_mpixels} megapixels for OCR",
-                )
-
-                ocrmypdf_args["max_image_mpixels"] = max_pixels_mpixels
-            else:
-                self.log.warning(
-                    "There is an issue with PAPERLESS_OCR_MAX_IMAGE_PIXELS, "
-                    "this value must be at least 1 megapixel if set",
-                )
+            self.log.debug(f"Calculated {max_pixels_mpixels} megapixels for OCR")
+            ocrmypdf_args["max_image_mpixels"] = max_pixels_mpixels
 
         return ocrmypdf_args