The Syncfusion native Blazor components library offers 70+ UI and Data Viz web controls that are responsive and lightweight for building modern web apps.
.NET PDF framework is a high-performance and comprehensive library used to create, read, merge, split, secure, edit, view, and review PDF files in C#/VB.NET.
VAVijayasurya Anandhan Syncfusion Team September 5, 2019 11:08 AM UTC
Hi Bob,
Thank you for contacting Syncfusion support.
Yes, Essential Presentation library has the capability to access and edit the alt text of each presentation object in the slide.
Our Essential Presentation library use Description API to get or set the alt text value for each presentation object present in the slide.
For better understanding, we have prepared a sample to meet your requirement in which we have done the following things.
1. Created a template PowerPoint presentation with table, picture, OleObject etc., with alt text for each object.
2. Opened the presentation using Essential Presentation Library.
3. Iterated each shape of each slide available in the presentation.
4. Checked whether the shape is OleObject and description (alt text) of the corresponding shape is same as in the template presentation. If it is so, modified the description (alt text) value.