---
title: "InstantJsonSettings"
canonical_url: "https://www.nutrient.io/api/python/settings/advanced/format/instant-json-settings/"
md_url: "https://www.nutrient.io/api/python/settings/advanced/format/instant-json-settings.md"
last_updated: "2026-06-12T15:43:20.744Z"
description: "Settings for InstantJson. Values fall back through three levels: document → SDK → built-in default."
---

Settings for InstantJson. Values fall back through three levels: document → SDK → built-in default. Writes target the document only when set on a document's settings, otherwise the SDK globally when set on SdkSettings.

**Tags:** `Advanced`, `Format`

```python

from nutrient_sdk import InstantJsonSettings

```

## Construction

`InstantJsonSettings` is accessed through a [`Document`](/api/python/document/) instance for per-document overrides, or via [`SdkSettings`](/api/python/settings/document/sdk-settings/) for SDK-wide defaults.

```python

# Per-document override

with Document.open("input.pdf") as doc:
    settings = doc.settings.instant_json_settings
    settings.some_field = new_value          # mutate fields directly

# SDK-wide default (applies to all documents)

SdkSettings.instant_json_settings.some_field = new_value

```

Settings are configured by writing to fields on the returned object. The settings property itself cannot be reassigned — `doc.settings.instant_json_settings = other_settings` is rejected.

## Properties

### change_tracking_enabled

```python

@property
def change_tracking_enabled(self) -> bool

@change_tracking_enabled.setter
def change_tracking_enabled(self, value: bool) -> None

```

Whether Instant JSON change tracking is enabled. When enabled, modifications to annotations, form fields, form field values, comments, and bookmarks are recorded so that export produces a diff containing only items that changed — matching Core SDK's export_document_json behavior.

**Type:** `bool`

**Default:** `true`

---

### render_theme

```python

@property
def render_theme(self) -> InstantJsonRenderTheme

@render_theme.setter
def render_theme(self, value: InstantJsonRenderTheme) -> None

```

The annotation appearance theme to use when importing Instant JSON.

**Type:** [`InstantJsonRenderTheme`](/api/python/enums/instant-json-render-theme/)

**Default:** `InstantJsonRenderTheme.Default`

---

---

## Related pages

- [Format](/api/python/settings/advanced/format.md)