Terms of Service

These terms cover your use of Korva — the desktop app and its free Reader & Converter tier, and this website. By downloading, buying, or using Korva, you agree to them.

1. Who we are

Korva is made by Korva (“we”, “us”). “You” means the person or organisation using Korva.

Korva is not a company: it is developed and sold by Supanat Konprom, an independent developer based in Bang Pla Ma, Suphan Buri, Thailand. If your organisation needs vendor details for a purchase approval, use:

• Vendor name: Supanat Konprom (trading as Korva)
• City: Bang Pla Ma
• State / province: Suphan Buri
• Country: Thailand

Payment is taken by Polar (polar.sh), our Merchant of Record, which issues the invoice and receipt (see section 5). Need a full postal address or other paperwork? Email support@korsund.com.

2. Your licence

When you buy Korva, we grant you a non-exclusive, non-transferable licence to install and use the software:

• One-time purchase. Pay once (USD $49). There is no subscription and no recurring charge.
• Per user, one device. A standard licence is for one person and runs on one computer at a time. To move to another machine, deactivate it in the app — or, if that machine is no longer available, reset the licence from the licence page — then activate on the new one. Multi-device and organisation packs are available separately.
• Free updates within your major version. Maintenance and feature updates to your major version are included. A future major version may be offered as an optional paid upgrade.
• Online activation. After purchase, Polar emails you a licence key. You activate it online in Korva (on one device at a time). Pro then re-checks the licence when the computer is online and keeps working for 30 days without a connection; your documents always stay on your machine. Keep the key safe and treat it like a password.

What you may not do

• Resell, sublicense, rent, or share your licence key beyond your own seats.
• Remove or circumvent the licensing mechanism, or attempt to forge licence keys.
• Redistribute the software as your own product.

Your documents are yours. Anything you create, open, or export with Korva belongs to you. We claim no rights over your files.

3. The free desktop tier

Korva offers a free tier that can open .pub and .kva files, edit the recovered layout and export one complete project to PDF or an image as often as needed. Korva Pro is required to export additional desktop projects, batch-convert an archive, save an editable .kva project, use mail merge or use master pages. People who used Korva before this policy keep their previous Free flat-output access; the app detects and preserves that access locally and offers a restore control if an operating-system cleanup or reinstall removed the old footprint. The browser PUB-to-PDF converter remains a separate free one-file workflow.

4. Ownership

Korva and its underlying technology — including its independent, clean-room .pub reader, layout engine, and PDF exporter — are our intellectual property and are licensed, not sold. This agreement gives you a licence to use the software, not ownership of it.

5. Payment, taxes, and refunds

• Checkout. Purchases are processed by Polar (polar.sh), our Merchant of Record, acting as the merchant/seller of record. They handle billing and applicable taxes (such as VAT/GST) for your region.
• 14-day money-back guarantee. If Korva Pro isn’t right for you, email support@korsund.com within 14 days of your purchase, with the email address you bought with, and we’ll refund the full price. No questions asked. The refund is issued through Polar (polar.sh), our Merchant of Record, and the licence key is deactivated when it is. Any refund rights you have under the consumer law of your country are unaffected.
• Moving machines. Switching computers? Deactivate in the app, or reset your licence from the licence page, then activate on the new one. Lost your key? Get in touch and we’ll sort it out.

6. Acceptable use

Use Korva lawfully. Don’t use it to infringe others’ rights, and don’t use the Korva name or brand in a way that implies endorsement or affiliation that doesn’t exist.

7. Trademarks

“Microsoft Publisher” and related names are trademarks of Microsoft Corporation. Korva is an independent product, built with a clean-room reader of public file formats, and is not affiliated with, sponsored by, or endorsed by Microsoft. We reference Publisher only to describe compatibility.

8. Disclaimer of warranties

Korva is provided “as is” and “as available”, without warranties of any kind, whether express or implied, including merchantability, fitness for a particular purpose, and non-infringement. While Korva aims to reproduce your documents faithfully, legacy files are read from an undocumented format, fonts that aren’t installed are replaced, and Korva may not reproduce every original layout pixel-for-pixel. Always check exported PDFs before sending them to print.

9. Limitation of liability

To the maximum extent permitted by law, our total liability for any claim relating to Korva is limited to the amount you paid for your licence in the twelve months before the claim. We are not liable for indirect, incidental, or consequential damages, including lost profits, lost data, or printing costs. Some jurisdictions don’t allow these limits, in which case they apply to the fullest extent permitted.

10. Termination

Your licence lasts until terminated. It ends automatically if you materially breach these terms (for example by pirating or reselling keys). You may stop using Korva at any time. Sections on ownership, disclaimers, and liability survive termination.

11. Changes to these terms

We may update these terms; we’ll change the “last updated” date above and, for material changes, take reasonable steps to let buyers know. Continuing to use Korva after a change means you accept the updated terms.

12. Governing law

These terms are governed by the laws of Thailand, without regard to conflict-of-laws rules. Where mandatory consumer-protection laws in your own country apply, nothing here removes rights you have under them.

13. Contact

Questions about these terms, a problem with Korva or a bug to report? Email support@korsund.com.

Effective June 14, 2026. See also our Privacy Policy.