--- title: "1.17 release notes" canonical_url: "https://www.nutrient.io/guides/web/release-notes/1-17/" md_url: "https://www.nutrient.io/guides/web/release-notes/1-17.md" last_updated: "2026-06-25T00:00:00.000Z" description: "Lists important changes for Nutrient Web SDK 1.17" --- Nutrient Web SDK 1.17 makes slot-based UI customization reactive, improves text selection accuracy, and strengthens screen reader support for annotations. It also updates GdPicture and ships a broad round of rendering, forms, and stability fixes. See the [changelog](https://www.nutrient.io/guides/web/changelog.md#1.17.0) for full details. ### Reactive UI slot customization This release makes the slot-based UI customization system reactive, so custom slots stay in sync with your application state and the SDK lifecycle without manual DOM bookkeeping. - Slot callbacks now receive a `helpers` argument that exposes `requestUpdate()`. Call it from asynchronous work, event handlers, or lifecycle hooks to ask the SDK to re-invoke your slot’s `render` with the current parameters (but not synchronously from within `render`). - A slot’s `render` now runs once at mount and then again automatically once the SDK instance becomes available, so `getInstance()` returns the live instance without extra wiring. - Slot lifecycle timing is more predictable: Most slots fire after instance availability, while the `loader` and `passwordPrompt` slots keep their original raw mount timing because they can render before `load()` resolves. ```js NutrientViewer.load({ //...your existing configuration. ui: { commentThread: (getInstance, id, { requestUpdate }) => { const root = document.createElement("div"); return { render: () => { // `getInstance()` is null until the instance is available; // `render` then runs again automatically once it is. root.textContent = getInstance()? `Thread ${id}` : "Loading…"; return root; }, onMount: () => { // Rerun `render` whenever your own application state changes. myStore.subscribe(requestUpdate); }, }; }, }, }); ``` For more information, refer to the [UI customization](https://www.nutrient.io/guides/web/user-interface/ui-customization/introduction.md) and [supported slots](https://www.nutrient.io/guides/web/user-interface/ui-customization/supported-slots.md) guides. ### Improved text selection accuracy This release improves text selection accuracy. In Document Engine mode, this improvement requires [Document Engine 1.17.0](https://www.nutrient.io/guides/document-engine/changelog.md) or later once available. ### Accessibility Screen reader support is improved for annotations. When keyboard focus lands on a markup, ink, or shape annotation, the SDK now exposes the annotation’s referenced text, so assistive technologies announce the content the annotation refers to. ### Other additions - GdPicture is updated to 14.4.4. Refer to the [GdPicture changelog](https://www.nutrient.io/guides/dotnet/changelog.md#14.4.4) for details. ### Performance, rendering, and stability - Fixes several Document Editor issues, including a crash when moving selected pages after a page in the same selection, inconsistent reordering when moving multiple selected pages, and a move dialog that could require two taps on mobile. - Fixes a range of Form Creator and form field issues: Editing a field’s name no longer makes it disappear until the next click, Control/Command-click no longer silently exits the active interaction mode, Shift-click now registers on the first widget when starting a multiselection, and newly created fields can be renamed repeatedly in standalone mode. - Fixes signature handling, including filling overlapping signature form fields, a selection flicker on filled signature fields, typed electronic signatures being cropped in RTL documents, and a raw localization key in the signature image picker. - Fixes measurement issues, including a loupe that could stay visible after pressing Escape, fractional precision labels showing an incorrect inch suffix for non-inch units, and an error and ghost label left behind after undoing an in-progress polygon area measurement. - Fixes several rendering issues, including thin white or colored lines in smooth background areas, squiggly text markup appearing truncated after resizing or zooming, search highlights making matched text unreadable in Safari, custom overlay items drifting from page content while scrolling, and rendering of zero-size and small pages in server-backed mode. - Fixes text annotation autofit so disabled autofit preserves manually resized bounding boxes when changing text properties and stops text selection toolbar items from appearing in the annotation toolbar. - Additional fixes across Instant JSON export (checkbox and radio button option labels) and standalone document loading for generic or missing MIME types. For a full list of fixes, refer to the [changelog](https://www.nutrient.io/guides/web/changelog.md#1.17.0). Minimum Document Engine version required: [1.5.6](https://www.nutrient.io/guides/document-engine/changelog.md#1.5.6) For a complete list of changes, bug fixes, and improvements, refer to the [changelog](https://www.nutrient.io/guides/web/changelog.md#1.17.0). For previous release notes, refer to the [Web SDK 1.16 release notes](https://www.nutrient.io/guides/web/release-notes/1-16.md). We appreciate your feedback and contributions as we continue to enhance Nutrient Web SDK. --- ## Related pages - [1 0](/guides/web/release-notes/1-0.md) - [1 1](/guides/web/release-notes/1-1.md) - [1 10](/guides/web/release-notes/1-10.md) - [1 12](/guides/web/release-notes/1-12.md) - [1 14](/guides/web/release-notes/1-14.md) - [1 13 1](/guides/web/release-notes/1-13-1.md) - [1 11](/guides/web/release-notes/1-11.md) - [1 15](/guides/web/release-notes/1-15.md) - [1 16](/guides/web/release-notes/1-16.md) - [1 13](/guides/web/release-notes/1-13.md) - [1 2](/guides/web/release-notes/1-2.md) - [1 3](/guides/web/release-notes/1-3.md) - [1 4](/guides/web/release-notes/1-4.md) - [Update your PSPDFKit for Web to version 2017.7](/guides/web/release-notes/2017-7.md) - [1 5](/guides/web/release-notes/1-5.md) - [1 7](/guides/web/release-notes/1-7.md) - [1 8](/guides/web/release-notes/1-8.md) - [1 9](/guides/web/release-notes/1-9.md) - [2017 3](/guides/web/release-notes/2017-3.md) - [1 6](/guides/web/release-notes/1-6.md) - [2017 6](/guides/web/release-notes/2017-6.md) - [Explore new features in PSPDFKit for Web 2017.9](/guides/web/release-notes/2017-9.md) - [New features in the 2018.1 migration guide](/guides/web/release-notes/2018-1.md) - [Explore PSPDFKit for Web 2018.4 features](/guides/web/release-notes/2018-4.md) - [Discover the new features in PSPDFKit for Web 2018.3](/guides/web/release-notes/2018-3.md) - [Upgrade annotations in PSPDFKit Web 2017.8](/guides/web/release-notes/2017-8.md) - [PSPDFKit for Web 2018.2 migration insights](/guides/web/release-notes/2018-2.md) - [Explore new features in PSPDFKit 2018.5](/guides/web/release-notes/2018-5.md) - [Explore PSPDFKit for Web 2018.6 enhancements](/guides/web/release-notes/2018-6.md) - [Explore the new features in PSPDFKit 2018.7](/guides/web/release-notes/2018-7.md) - [Key updates in PSPDFKit for Web 2019.1](/guides/web/release-notes/2019-1.md) - [2019 2](/guides/web/release-notes/2019-2.md) - [PSPDFKit for Web 2019.3 migration highlights](/guides/web/release-notes/2019-3.md) - [Upgrade to PSPDFKit Web 2020.3 seamlessly](/guides/web/release-notes/2020-3.md) - [Essential updates in PSPDFKit for Web 2019.4](/guides/web/release-notes/2019-4.md) - [PSPDFKit for Web 2019.5 migration insights](/guides/web/release-notes/2019-5.md) - [Seamless migration to PSPDFKit for Web 2020.2](/guides/web/release-notes/2020-2.md) - [PSPDFKit Web and Server 2020.4 migration update](/guides/web/release-notes/2020-4.md) - [Key changes in PSPDFKit for Web 2020.1](/guides/web/release-notes/2020-1.md) - [Unified CRUD API enhancements for easy migration](/guides/web/release-notes/2020-5.md) - [PSPDFKit Web 2020.6 migration insights](/guides/web/release-notes/2020-6.md) - [2021 3](/guides/web/release-notes/2021-3.md) - [Upgrade to PSPDFKit for Web 2021.1 with ease](/guides/web/release-notes/2021-1.md) - [Seamlessly migrate to PSPDFKit for Web 2021.2](/guides/web/release-notes/2021-2.md) - [PSPDFKit 2021.4 migration guide for seamless updates](/guides/web/release-notes/2021-4.md) - [Explore the new features of PSPDFKit for Web 2022.3](/guides/web/release-notes/2022-3.md) - [Migration guide for PSPDFKit 2021.5](/guides/web/release-notes/2021-5.md) - [Enhancements in PSPDFKit for Web 2022.2](/guides/web/release-notes/2022-2.md) - [2021 6](/guides/web/release-notes/2021-6.md) - [Key improvements in PSPDFKit for Web 2022.5](/guides/web/release-notes/2022-5.md) - [PSPDFKit for Web 2022.4 migration overview](/guides/web/release-notes/2022-4.md) - [PSPDFKit 2022.1.1 migration changes](/guides/web/release-notes/2022-1.md) - [PSPDFKit 2023.2 migration and updates](/guides/web/release-notes/2023-2.md) - [Key updates in PSPDFKit for Web 2023.3](/guides/web/release-notes/2023-3.md) - [Explore key updates in PSPDFKit for Web 2023.4](/guides/web/release-notes/2023-4.md) - [Key updates in PSPDFKit for Web 2023.5](/guides/web/release-notes/2023-5.md) - [2024 3](/guides/web/release-notes/2024-3.md) - [Discover the key updates in PSPDFKit for Web 2023.1](/guides/web/release-notes/2023-1.md) - [Essential Nutrient Web SDK 2024.1 migration tips](/guides/web/release-notes/2024-1.md) - [2024 2](/guides/web/release-notes/2024-2.md) - [2024 4](/guides/web/release-notes/2024-4.md) - [2024 5](/guides/web/release-notes/2024-5.md) - [2024 7](/guides/web/release-notes/2024-7.md) - [2024 8](/guides/web/release-notes/2024-8.md) - [Upgrading Nutrient Web SDK](/guides/web/release-notes/upgrading.md)