SLIDESDOC-686 Add FAQ sections to the articles about Aspose.Slides for Node.js via Java (batch 1) (#834)

Added FAQ sections to 64 articles.

Author: andreypotapovaspose

en/net/developer-guide/presentation-content/manage-text/presentation-localization/_index.md

@@ -29,11 +29,11 @@ using (Presentation pres = new Presentation("test0.pptx"))
 
 ## **FAQ**
 
-**Does language_id trigger automatic text translation?**
+**Does language ID trigger automatic text translation?**
 
-No. [language_id](https://reference.aspose.com/slides/net/aspose.slides/portionformat/languageid/) in Aspose.Slides stores the language for spell-checking and grammar proofing, but it does not translate or change the text content. It is metadata that PowerPoint understands for proofing.
+No. [LanguageId](https://reference.aspose.com/slides/net/aspose.slides/baseportionformat/languageid/) in Aspose.Slides stores the language for spell-checking and grammar proofing, but it does not translate or change the text content. It is metadata that PowerPoint understands for proofing.
 
-**Does language_id affect hyphenation and line breaks during rendering?**
+**Does language ID affect hyphenation and line breaks during rendering?**
 
 In Aspose.Slides, [LanguageId](https://reference.aspose.com/slides/net/aspose.slides/baseportionformat/languageid/) is for proofing. Hyphenation quality and line wrapping primarily depend on the availability of [proper fonts](/slides/net/powerpoint-fonts/) and layout/line-break settings for the writing system. To ensure correct rendering, make the required fonts available, configure [font substitution rules](/slides/net/font-substitution/), and/or [embed fonts](/slides/net/embedded-font/) into the presentation.
 

en/nodejs-java/developer-guide/3d-presentation/_index.md

@@ -5,7 +5,8 @@ weight: 232
 url: /nodejs-java/3d-presentation/
 ---
 
-## Overview
+## **Overview**
+
 Since Aspose.Slides for Java 20.9 its possible to create 3D in presentations. PowerPoint 3D is a way to give life to presentations. Show the real world objects 
 with 3D presentation, demonstrate 3D model of your future business project, 3D model of the building or its interior, 3D model of the game character, 
 or just a 3D representation of your data. 
@@ -55,7 +56,8 @@ Here is the resulting 3D model:
 
 ![todo:image_alt_text](img_01_01.png)
 
-## 3D Rotation
+## **3D Rotation**
+
 The rotation of 3D model in PowerPoint can be done via menu:
 
 ![todo:image_alt_text](img_02_01.png)
@@ -77,7 +79,8 @@ try {
 }
 ```
 
-## 3D Depth and Extrusion
+## **3D Depth and Extrusion**
+
 **[ThreeDFormat.getExtrusionHeight()](https://reference.aspose.com/slides/nodejs-java/aspose.slides/ThreeDFormat#getExtrusionHeight--)**
 and **[ThreeDFormat.getExtrusionColor()](https://reference.aspose.com/slides/nodejs-java/aspose.slides/ThreeDFormat#getExtrusionColor--)** methods
 are used to create extrusion on shape:
@@ -102,7 +105,8 @@ In PowerPoint, Depth of the shape is set via:
 
 ![todo:image_alt_text](img_02_02.png)
 
-## 3D Gradient
+## **3D Gradient**
+
 3D gradient can bring more volume to PowerPoint 3D shape:
 
 ```javascript
@@ -169,7 +173,8 @@ Here is the result:
 
 ![todo:image_alt_text](img_02_04.png)
 
-## 3D Text (WordArt)
+## **3D Text (WordArt)**
+
 To create a 3D text (WordArt), do the following:
 ```javascript
 var pres = new aspose.slides.Presentation();
@@ -214,15 +219,16 @@ Here is the result:
 
 ![todo:image_alt_text](img_02_05.png)
 
- 
- 
-## Not Supported - Coming Soon
-The following PowerPoint 3D features are not supported yet: 
-- Bevel
-- Material
-- Contour
-- Lighting
+## **FAQ**
 
+**Will 3D effects be preserved when exporting a presentation to images/PDF/HTML?**
 
- 
+Yes. The Slides 3D engine renders 3D effects when exporting to supported formats ([images](/slides/nodejs-java/convert-powerpoint-to-png/), [PDF](/slides/nodejs-java/convert-powerpoint-to-pdf/), [HTML](/slides/nodejs-java/convert-powerpoint-to-html/), etc.).
+
+**Can I retrieve the "effective" (final) 3D parameter values that account for themes, inheritance, etc.?**
+
+Yes. Slides provides APIs to [read effective values](/slides/nodejs-java/shape-effective-properties/) (including for 3D—lighting, bevels, etc.) so you can see the final applied settings.
+
+**Do 3D effects work when converting a presentation to video?**
 
+Yes. When [generating frames for the video](/slides/nodejs-java/convert-powerpoint-to-video/), 3D effects are rendered just as they are for [exported images](/slides/nodejs-java/convert-powerpoint-to-png/).

en/nodejs-java/developer-guide/manage-presentation/convert-presentation/convert-openoffice-odp/_index.md

@@ -17,3 +17,20 @@ description: "Convert ODP to PDF, ODP to PPT, ODP to PPTX, ODP to HTML in JavaSc
 - [Convert ODP to PDF with Notes](/slides/nodejs-java/convert-powerpoint-ppt-and-pptx-to-pdf-notes/)
 - [Convert ODP to TIFF with Notes](/slides/nodejs-java/convert-powerpoint-ppt-and-pptx-to-tiff-with-notes/)
 
+## **FAQ**
+
+**What if the formatting of my ODP file changes after conversion?**
+
+ODP and PowerPoint use different presentation models, and some elements—like tables, custom fonts, or fill styles—may not render exactly the same. It is recommended to review the output and adjust layout or formatting in code if needed.
+
+**Do I need OpenOffice or LibreOffice installed to use ODP conversion?**
+
+No, Aspose.Slides is a standalone library and does not require OpenOffice or LibreOffice to be installed on your system.
+
+**Can I customize the output format during ODP conversion (e.g., set PDF options)?**
+
+Yes, Aspose.Slides provides rich options for customizing the output. For example, when saving to PDF, you can control compression, image quality, text rendering, and more through the [PdfOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/pdfoptions/) class.
+
+**Is Aspose.Slides suitable for server-side or cloud-based ODP processing?**
+
+Absolutely. Aspose.Slides is designed to work in both desktop and server environments, including cloud-based platforms like Azure, AWS, and Docker containers, without any UI dependencies.

en/nodejs-java/developer-guide/manage-presentation/convert-presentation/convert-openoffice-odp/convert-odp-to-pptx/_index.md

@@ -17,3 +17,21 @@ pres.save("AccessOpenDoc_out.pptx", aspose.slides.SaveFormat.Pptx);
 
 ## **Live Example**
 You can visit [**Aspose.Slides Conversion**](https://products.aspose.app/slides/conversion/) web app, which is built with **Aspose.Slides API.** The app demonstrates how ODP to PPTX conversion can be implemented with Aspose.Slides API.
+
+## **FAQ**
+
+**Do I need to install Microsoft PowerPoint or LibreOffice to convert ODP to PPTX?**
+
+No. Aspose.Slides works standalone and does not require third-party applications to read or write ODP/PPTX.
+
+**Are master slides, layouts, and themes preserved during conversion?**
+
+Yes. The library uses a full presentation object model and retains structure, including master slides and layouts, so the design remains correct after conversion.
+
+**Can I convert password-protected ODP files?**
+
+Yes. Aspose.Slides supports detecting protection, opening and working with [protected presentations](/slides/nodejs-java/password-protected-presentation/) (including ODP) when you provide the password, as well as configuring encryption and access to document properties.
+
+**Is Aspose.Slides suitable for cloud or REST-based conversion services?**
+
+Yes. You can use the local library in your own backend or [Aspose.Slides Cloud](https://products.aspose.cloud/slides/family/) (REST API); both options support ODP → PPTX conversion.

en/nodejs-java/developer-guide/manage-presentation/convert-presentation/convert-powerpoint/convert-powerpoint-in-Handout-mode/_index.md

@@ -17,6 +17,8 @@ keywords:
 description: "Convert Presentations in Handout Mode in JavaScript"
 ---
 
+## **Handout Mode Export**
+
 Aspose.Slides provides the ability to convert presentations into various formats, including creating handouts for printing in Handout mode. This mode allows you to configure how multiple slides appear on a single page, making it useful for conferences, seminars, and other events. You can enable this mode by setting the `setSlidesLayoutOptions` method in the [PdfOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/pdfoptions/), [RenderingOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/renderingoptions/), [HtmlOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/htmloptions/), and [TiffOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/tiffoptions/) classes.
 
 To configure Handout mode, use the [HandoutLayoutingOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/handoutlayoutingoptions/) object, which determines how many slides are placed on a single page and other display parameters.
@@ -47,3 +49,17 @@ presentation.dispose();
 Keep in mind that the `setSlidesLayoutOptions` method is available only for certain output formats, such as PDF, HTML, TIFF, and when rendering as images.
 
 {{% /alert %}} 
+
+## **FAQ**
+
+**What is the maximum number of slide thumbnails per page in Handout mode?**
+
+Aspose.Slides supports [presets](https://reference.aspose.com/slides/nodejs-java/aspose.slides/handouttype/) up to 9 thumbnails per page with horizontal or vertical ordering: 1, 2, 3, 4 (horizontal/vertical), 6 (horizontal/vertical), and 9 (horizontal/vertical).
+
+**Can I define a custom grid, such as 5 or 8 slides per page?**
+
+No. The number and ordering of thumbnails are controlled strictly by the [HandoutType](https://reference.aspose.com/slides/nodejs-java/aspose.slides/handouttype/) enumeration; arbitrary layouts are not supported.
+
+**Can I include hidden slides in the Handout output?**
+
+Yes. Use the `setShowHiddenSlides` method in the export settings for the target format, such as [PdfOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/pdfoptions/), [HtmlOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/htmloptions/), or [TiffOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/tiffoptions/).

en/nodejs-java/developer-guide/manage-presentation/convert-presentation/convert-powerpoint/convert-powerpoint-to-animated-gif/_index.md

@@ -7,7 +7,7 @@ keywords: "Convert PowerPoint to animated GIF, PPT to GIF, PPTX to GIF"
 description: "Convert PowerPoint to animated GIF: PPT to GIF, PPTX to GIF, with Aspose.Slides API."
 ---
 
-## Converting Presentations to Animated GIF Using Default Settings ##
+## **Converting Presentations to Animated GIF Using Default Settings**
 
 This sample code in JavaScript shows you how to convert a presentation to animated GIF using standard settings:
 
@@ -30,7 +30,8 @@ If you prefer to customize the parameters for the GIF, you can use the [GifOptio
 
 {{% /alert %}} 
 
-## Converting Presentations to Animated GIF Using Custom Settings ##
+## **Converting Presentations to Animated GIF Using Custom Settings**
+
 This sample code shows you how to convert a presentation to animated GIF using custom settings in JavaScript:
 
 ```javascript
@@ -53,3 +54,13 @@ try {
 You may want to check out a FREE [Text to GIF](https://products.aspose.app/slides/text-to-gif) converter developed by Aspose. 
 
 {{% /alert %}}
+
+## **FAQ**
+
+**What if the fonts used in the presentation aren’t installed on the system?**
+
+Install the missing fonts or [configure fallback fonts](/slides/nodejs-java/powerpoint-fonts/). Aspose.Slides will substitute, but the appearance may differ. For branding, always ensure the required typefaces are explicitly available.
+
+**Can I overlay a watermark on the GIF frames?**
+
+Yes. [Add a semi-transparent object/logo](/slides/nodejs-java/watermark/) to the master slide or to individual slides before export — the watermark will appear on every frame.

en/nodejs-java/developer-guide/manage-presentation/convert-presentation/convert-powerpoint/convert-powerpoint-to-html/_index.md

@@ -396,3 +396,17 @@ try {
     }
 }
 ```
+
+## **FAQ**
+
+**What is the performance of Aspose.Slides when converting multiple presentations to HTML?**
+
+Performance depends on the size and complexity of presentations. Aspose.Slides is highly efficient and scalable for batch operations. To achieve optimal performance when converting many presentations, it’s recommended to use multithreading or parallel processing whenever possible.
+
+**Does Aspose.Slides support exporting hyperlinks to HTML?**
+
+Yes, Aspose.Slides fully supports exporting embedded hyperlinks to HTML. When you convert presentations to HTML format, hyperlinks are preserved automatically and remain clickable.
+
+**Is there any limit on the number of slides when converting presentations to HTML?**
+
+There is no limit on the number of slides when using Aspose.Slides. You can convert presentations of any size. However, for presentations containing a very large number of slides, performance may depend on the available resources of your server or system.

en/nodejs-java/developer-guide/manage-presentation/convert-presentation/convert-powerpoint/convert-powerpoint-to-jpg/_index.md

@@ -129,3 +129,17 @@ Using the same principles described in this article, you can convert images from
 See other options to convert PPT/PPTX into image like:
 
 - [PPT/PPTX to SVG conversion](/slides/nodejs-java/render-a-slide-as-an-svg-image/).
+
+## **FAQ**
+
+**Does this method support batch conversion?**
+
+Yes, Aspose.Slides allows batch conversion of multiple slides to JPG in a single operation.
+
+**Does the conversion support SmartArt, charts, and other complex objects?**
+
+Yes, Aspose.Slides renders all content, including SmartArt, charts, tables, shapes, and more. However, the rendering accuracy may vary slightly compared to PowerPoint, especially when using custom or missing fonts.
+
+**Are there any limitations on the number of slides that can be processed?**
+
+Aspose.Slides itself does not impose any strict limits on the number of slides you can process. However, you may encounter out-of-memory error when working with large presentations or high-resolution images.

en/nodejs-java/developer-guide/manage-presentation/convert-presentation/convert-powerpoint/convert-powerpoint-to-markdown/_index.md

@@ -37,7 +37,7 @@ try {
 }
 ```
 
-## Convert PowerPoint to Markdown Flavor
+## **Convert PowerPoint to Markdown Flavor**
 
 Aspose.Slides allows you to convert PowerPoint to markdown (containing basic syntax), CommonMark, GitHub flavored markdown, Trello, XWiki, GitLab, and 17 other markdown flavors.
 
@@ -104,3 +104,17 @@ try {
     }
 }
 ```
+
+## **FAQ**
+
+**Do hyperlinks survive the export to Markdown?**
+
+Yes. Text [hyperlinks](/slides/nodejs-java/manage-hyperlinks/) are preserved as standard Markdown links. Slide [transitions](/slides/nodejs-java/slide-transition/) and [animations](/slides/nodejs-java/powerpoint-animation/) are not converted.
+
+**Can I speed up conversion by running it in multiple threads?**
+
+You can parallelize across files, but [don’t share](/slides/nodejs-java/multithreading/) the same [Presentation](https://reference.aspose.com/slides/nodejs-java/aspose.slides/presentation/) instance across threads. Use separate instances/processes per file to avoid contention.
+
+**What happens to images—where are they saved, and are the paths relative?**
+
+[Images](/slides/nodejs-java/image/) are exported to a dedicated folder, and the Markdown file references them with relative paths by default. You can configure the base output path and asset folder name to keep a predictable repository structure.

en/nodejs-java/developer-guide/manage-presentation/convert-presentation/convert-powerpoint/convert-powerpoint-to-pdf/_index.md

@@ -301,25 +301,25 @@ Aspose.Slides supports PDF conversion operations, allowing you to convert PDF fi
 
 {{% /alert %}}
 
-## **Frequently Asked Questions**
+## **FAQ**
 
-1. **Can I convert multiple PowerPoint files to PDF in bulk?**
+**Can I convert multiple PowerPoint files to PDF in bulk?**
 
 Yes, Aspose.Slides supports batch conversion of multiple PPT or PPTX files to PDF. You can iterate through your files and apply the conversion process programmatically.
 
-2. **Is it possible to password-protect the converted PDF?**
+**Is it possible to password-protect the converted PDF?**
 
 Absolutely. Use the [PdfOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/PdfOptions) class to set a password and define access permissions during the conversion process.
 
-3. **How do I include hidden slides in the PDF?**
+**How do I include hidden slides in the PDF?**
 
 Use the `setShowHiddenSlides` method in the [PdfOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/PdfOptions) class to include hidden slides in the resulting PDF.
 
-4. **Can Aspose.Slides maintain high image quality in the PDF?**
+**Can Aspose.Slides maintain high image quality in the PDF?**
 
 Yes, you can control image quality by using methods such as `setJpegQuality` and `setSufficientResolution` in the [PdfOptions](https://reference.aspose.com/slides/nodejs-java/aspose.slides/PdfOptions) class to ensure high-quality images in your PDF.
 
-5. **Does Aspose.Slides support PDF/A compliance standards?**
+**Does Aspose.Slides support PDF/A compliance standards?**
 
 Yes, Aspose.Slides allows you to export PDFs that comply with various standards, including PDF/A1a, PDF/A1b, and PDF/UA, ensuring your documents meet accessibility and archival requirements.