Can I build a course from a PDF without rewriting everything?
Yes, that is the core use case. The AI reads your PDF and generates a curriculum draft based on the content already in the document. You review and refine the draft rather than starting from a blank page. Most creators find they rewrite individual lesson introductions or add clarifying paragraphs, but the structural work — figuring out what modules and lessons the course needs — is handled automatically.
What types of documents work best?
PDFs with clear heading structure and substantial prose work best. That includes workbooks, frameworks, how-to guides, workshop handouts, white papers, e-books, and long-form blog exports. Very short documents (under five pages) tend to produce thin course outlines. Documents that are mostly images, tables, or slides without body text are harder for the AI to extract teaching content from, though it will still attempt a draft.
Can I mix written lessons with video after building from a PDF?
Yes. The PDF gives you the curriculum structure, but you are not locked into text-only lessons. Once the draft is generated, you can open any lesson and add a video block, embed a Mux or direct video upload, attach downloadable files, or add a quiz. Many creators use the PDF-to-course flow to build the course skeleton and then record short supporting videos for the lessons that benefit most from a visual walkthrough.
How does this compare to manually building a course from scratch?
Manually creating a course means writing the outline, naming modules and lessons, writing descriptions, deciding on structure, and only then writing the actual lesson content — all before you build anything on a platform. With CourseOS, the AI handles that structural work first using your document as input. You skip the blank-outline phase entirely and jump straight to reviewing and refining a real draft. For most creators, this reduces initial course build time from several weeks to two or three focused sessions.
Will students know the course came from a PDF?
Not unless you tell them. The published course looks like any other structured online course — it has modules, lessons, lesson content, a checkout page, and a learner portal. The source format you used to build it is a production detail, not something visible to students. What they experience is a well-organized course with clear lesson progression, not a reformatted PDF.
Can I protect certain lessons behind a paywall and offer previews?
Yes. You can mark individual lessons as free previews that anyone can read without enrolling, which is useful for demonstrating course quality before purchase. The remaining lessons are access-controlled behind enrollment. This lets you show potential students what the course is like without giving away the core paid content.
What happens to my PDF after I upload it?
The document is used to generate your course draft and then stored securely in your account. You can re-run generation or reference it later when adding new lessons. CourseOS does not republish your document or use it to train models. You retain full ownership of your source material.