After uploading a PDF or PPTX to create a course, you may find that the generated slides look basic - primarily text copied from the source document with no images or visual design. This article explains why this happens and what you can try to improve the output.
Why does this happen?
Napster Learn generates course slides based on the content in your uploaded document. The quality and visual richness of the output depends on how the source material is structured. Heavily text-based PDFs with no images tend to produce text-heavy slides. Image preservation from uploaded documents is a known area of ongoing improvement.
Tips to improve slide generation quality
- Use a descriptive generation prompt. When creating the course, use the prompt field to give the system clear instructions - for example: "Create visually engaging slides with a clear heading, 3-4 key bullet points, and a relevant image on each slide." Be specific about the structure and style you want.
- Use well-structured source documents. Documents with clear headings, sections, and concise bullet points tend to produce better slide output than dense, unformatted text.
- Split large documents. If you are uploading a long document, consider splitting it into logical topic sections. Shorter, focused documents often produce cleaner results per slide.
- Try a URL instead of a PDF. If the content is available on a public web page, entering the URL instead of uploading the PDF can sometimes produce better visual results as the system can access formatted web content.
Known limitation
Images embedded in uploaded PDFs may not always be preserved or reproduced in the generated slides. The team is actively working on improving image handling in course generation.
Still not getting the results you need?
Submit a support ticket with your organisation name, the course URL, and an example of the output versus what you expected.