Removing images from PDF page using JavaScript

1WebViewer({ fullAPI: true })
2    .then(instance => {
3        const { PDFNet } = instance.Core;
4        await PDFNet.initialize();
5        const doc = await PDFNet.PDFDoc.createFromURL(filename);
6        const page = await doc.getPage(1);
7
8        const writer = await PDFNet.ElementWriter.create();
9        const reader = await PDFNet.ElementReader.create();
10        reader.beginOnPage(page);
11        writer.beginOnPage(page, PDFNet.ElementWriter.WriteMode.e_replacement, false);
12
13        for (let element = await reader.next(); element !== null; element = await reader.next()) 
14        {
15            const elementType = await element.getType();
16            switch (elementType) 
17            {
18                case PDFNet.Element.Type.e_image:
19                case PDFNet.Element.Type.e_inline_image:
20                    // remove all images by skipping them
21                    break;
22                default:
23                    writer.writeElement(element);
24                    break;
25            }
26        }
27
28        writer.end();
29        reader.end();
30    })