diff --git a/docling_core/types/doc/base.py b/docling_core/types/doc/base.py
index 8ded884..cd52ed1 100644
--- a/docling_core/types/doc/base.py
+++ b/docling_core/types/doc/base.py
@@ -6,7 +6,7 @@
 """Define common models across CCS objects."""
 from typing import Annotated, Literal, Optional, Union
 
-from pydantic import BaseModel, Field, StrictStr
+from pydantic import BaseModel, Field, PositiveInt, StrictStr
 
 from docling_core.search.mapping import es_field
 from docling_core.utils.alias import AliasModel
@@ -39,7 +39,7 @@ class S3Resource(BaseModel):
 
     mime: str
     path: str
-    page: Optional[int] = None
+    page: Optional[PositiveInt] = None
 
 
 class S3Data(AliasModel):
@@ -68,7 +68,7 @@ class Prov(AliasModel):
     """Provenance."""
 
     bbox: BoundingBox
-    page: int
+    page: PositiveInt
     span: Span
     ref_s3_data: Optional[StrictStr] = Field(
         default=None, alias="__ref_s3_data", json_schema_extra=es_field(suppress=True)
@@ -96,7 +96,7 @@ class PageDimensions(BaseModel):
     """Page dimensions."""
 
     height: float
-    page: int
+    page: PositiveInt
     width: float
 
 
@@ -196,4 +196,4 @@ class PageReference(BaseModel):
 
     hash: str = Field(json_schema_extra=es_field(type="keyword", ignore_above=8191))
     model: str = Field(json_schema_extra=es_field(suppress=True))
-    page: int = Field(json_schema_extra=es_field(type="short"))
+    page: PositiveInt = Field(json_schema_extra=es_field(type="short"))
diff --git a/docs/Document.json b/docs/Document.json
index 7e6b3ce..828b4e8 100644
--- a/docs/Document.json
+++ b/docs/Document.json
@@ -1188,6 +1188,7 @@
           "type": "number"
         },
         "page": {
+          "exclusiveMinimum": 0,
           "title": "Page",
           "type": "integer"
         },
@@ -1219,6 +1220,7 @@
           "x-es-suppress": true
         },
         "page": {
+          "exclusiveMinimum": 0,
           "title": "Page",
           "type": "integer",
           "x-es-type": "short"
@@ -1245,6 +1247,7 @@
           "type": "array"
         },
         "page": {
+          "exclusiveMinimum": 0,
           "title": "Page",
           "type": "integer"
         },
@@ -1547,6 +1550,7 @@
         "page": {
           "anyOf": [
             {
+              "exclusiveMinimum": 0,
               "type": "integer"
             },
             {
diff --git a/docs/Document.md b/docs/Document.md
index 7860b4f..08c43b4 100644
--- a/docs/Document.md
+++ b/docs/Document.md
@@ -3598,6 +3598,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | Yes       |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | > 0 |
+
 </blockquote>
 </details>
 
@@ -3995,6 +3999,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | Yes       |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 </details>
 
@@ -4404,6 +4412,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | Yes       |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 </details>
 
@@ -5732,6 +5744,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | Yes       |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 </details>
 
@@ -6149,6 +6165,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | Yes       |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 </details>
 
@@ -6540,6 +6560,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | Yes       |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 </details>
 
@@ -7020,6 +7044,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | Yes       |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 </details>
 
@@ -7228,6 +7256,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | Yes       |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 </details>
 
@@ -7557,6 +7589,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | Yes       |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 </details>
 
@@ -7971,6 +8007,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | Yes       |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 </details>
 
@@ -8248,6 +8288,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | No        |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 <blockquote>
 
@@ -8403,6 +8447,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | No        |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 <blockquote>
 
@@ -8558,6 +8606,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | No        |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 <blockquote>
 
@@ -8692,6 +8744,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | No        |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 <blockquote>
 
@@ -8826,6 +8882,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | No        |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 <blockquote>
 
@@ -8960,6 +9020,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | No        |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 <blockquote>
 
@@ -9115,6 +9179,10 @@ Must be one of:
 | **Type**     | `integer` |
 | **Required** | No        |
 
+| Restrictions |        |
+| ------------ | ------ |
+| **Minimum**  | &gt; 0 |
+
 </blockquote>
 <blockquote>