Also, in the FAQs, the sample had four questions. Maybe include a few more if there are typical PDF tool questions. But keep it concise.
What are the main sections a user would need? Installation might be a good first step. Then, creating a profile or logging in. Next, key features like converting, editing, securing, etc. Need to make sure each feature is explained with clear steps.
Wait, the user wants a manual. So it should be a user-friendly guide. Maybe include screenshots or emphasize where the manual would have visual aids. But since it's text-based, I should describe each step clearly.
Conclusion should reinforce the value of the tool and perhaps a call to action, like visiting the website for more info or support.