Built to last, not to ship fast.
Starlight PDF
Annotate PDFs like pen and paper, but better, right inside Obsidian.
All the annotation tools you need, perfectly calibrated
Pen and keyboard optimized - fast, precise, and thoughtfully tuned to feel right.
Select Tool
Select, move, and arrange annotations with ease.
Lasso Tool
Freeform select multiple elements at once.
Pen Tool
Natural handwriting with automatic line smoothing.
Line Tool
Perfect straight lines and arrows for diagrams and emphasis.
Stroke Eraser Tool
Mistakes? No problem with stroke-by-stroke erasing.
Text Highlighter Tool
Highlight that snaps to the text on the PDF beneath.
Text Tool
Utilize your keyboard for fast annotations and comments.
Image Tool
Insert images directly into your PDF.
Available as an Obsidian.md plugin
Smoothly integrated into Obsidian and optimized to provide the best possible experience.
- Seamless integration
- Performance optimized
- Annotate academic papers & exercise sheets
- Perfect for PKM
- PDF for maximal portability
£15 and it's yours
Pay once, use forever. No subscriptions, no hidden fees.
Starlight PDF License
The complete PDF annotation solution
- Everything you need to annotate PDFs
- Unlimited annotations and files
- Optimized performance
- Privacy first
Compare with Competitors
| Feature | Starlight PDF | Others |
|---|---|---|
| One-time payment | Yes | No |
| Pen-optimized tools | Yes | Rare |
| Offline | Yes | Rare |
| Obsidian integration | Yes | No |
Frequently asked questions
Everything you need to know before buying.
Is it really a one-time payment?
Yes. £15 once and it's yours forever - no subscription, no recurring fees, no hidden costs.
Can I try it before buying?
Yes. You can download and try Starlight PDF without a license - the download page has full instructions. The only limitation is that saving your changes isn't possible until you activate a license.
Do I get future updates?
Every license includes all future updates to Starlight PDF at no extra cost.
Does it work offline?
Completely. Starlight PDF runs locally with no analytics, tracking, or internet requirement - your documents never leave your device.
How many devices can I use my license on?
Licenses are per user. Install and use Starlight PDF on the devices you personally own and use.
Do I need Obsidian?
Starlight PDF is delivered as an Obsidian plugin, so you'll need the free Obsidian.md app to run it. But a standalone app is in development and will be released in the future.
How do I install it?
Two steps - get it running (try the sample vault or install the plugin), then activate a license when you're ready to save. Full instructions are on the download page.
Ready to transform your PDF workflow?
Enjoy natural, seamless PDF editing - pay once, use forever.
Roadmap
What's coming next to Starlight PDF.
- Standalone AppPlanned
Starlight PDF as a dedicated desktop app.
- Shaped by your feedbackExploring
You can decide what comes next.