Rebelle FAQ

Find the answers to users' Frequently Asked Questions, you might find the answer to your question faster.

Upgrade to Rebelle 4

How can I upgrade to Rebelle 4?

The full price of Rebelle 4 is $89.99. Existing users of Rebelle 3 are eligible for a special upgrade price of $44.99. To upgrade, please log in to your Community account and add Rebelle 4 upgrade to the cart. You can also upgrade directly from Rebelle 3's menu: "Help" -> "Upgrade to Rebelle 4". Upgrading is optional and the upgrade discount will be available until the next major release. You can continue using your actual version for as long as you like. If you purchased Rebelle 3 after October 15th, 2020, you are eligible for a free upgrade and can download Rebelle 4 from your Community account.

What is your upgrade policy? How will I know there is a new update?

All minor updates (v.4.1, v.4.5, etc.) are free for the owners of the latest version. Major upgrades (v.4.0, v.5.0,...) are released once a year for a reduced price for the owners of the last preceding Rebelle version. When a new version is released, we notify users through our newsletter and blog.

Image, Painting & Pen Pressure

Is there any way to increase the default resolution from 29.7cm x 21cm 200DPI?

You can set your canvas size in the menu "File"->"New...". The maximum canvas resolution depends on your computer memory.

Rebelle brush is lagging with a larger canvas, why is that?

The math running behind the painting process is quite complicated, so for larger canvases, it would be always better to have a faster processor.

The watercolor diffusion is fast, is there any workaround?

The speed of watercolor diffusion depends on the amount of water on the canvas. You can pause the diffusion anytime with the "Pause Diffusion" button, or if you are satisfied with watercolor results click "Fast Dry" in the Layers panel to dry all water on canvas.

Does Rebelle support pressure sensitivity and touch features on Microsoft Surface tablets and Surface Book?

Yes, Rebelle supports Microsoft Surface touch features with pen pressure sensitivity.

The old Rebelle version (1.4 and lower) needed a N-Trig WinTab driver installed for Surface tablets. In any case if you need the WinTab driver: You can find the driver for Surface 3 here and for Surface 4 here by clicking on "Download". It's listed at the bottom amongst other Surface Pro drivers (
It is also recommended to use the Microsoft Surface Hub to set the correct pressure.

Purchase, Registration & License

How do I register Rebelle 4?

Please register Rebelle 4 using your Community account's credentials (Email address/Username, and Password) in the registration window.

Internet connection is required for activation.

Why was my credit card declined?

Unfortunately, when the payment processing company declines a transaction on behalf of your bank or card issuer, it does not tell us why.

Your card may have been declined by your bank or card issuer for a variety of reasons; common reasons include:
- Incorrect credit card number or expiration date
- Insufficient funds
- Some banks will reject charges based on their own fraud rules

You will need to contact your bank or card issuer to find out the specific reason your card was declined, since they are the one declining the transaction.

You may re-attempt the transaction or choose the “PayPal” Payment method. You don’t need to have a PayPal account - after you click the “Checkout with PayPal” method, you will be given a choice to “Pay with a credit or debit card”.

I lost my installation file and Registration Key and... my computer!

- If you lost your installation file, you can download it again from your Community account (go to your profile and click the Purchases tab) or the Download page here.
- If you forgot your password for Rebelle 4, you can recover it from here.
- If you lost your Registration Key for Rebelle 1 or Rebelle 2, enter your email (Your ID) here, and we will send you the keys.
- If you lost your computer, be happy your family and friends are healthy, it's more important than the lost computer. And we can still send you your installation file and Registration Key. :)

How many computers can I install a single license of Rebelle on?

- If you are a private individual you may download and install three (3) copies of the Software directly on a computer running Microsoft Windows (“Windows Computer”) or macOS ("Mac Computer") that you personally own or control provided that not more than one of those computers is in use simultaneously.
- If you are a commercial enterprise you may download, install, use and run one (1) copy of the Software for use by one individual or multiple individuals on a single shared Windows or Mac Computer that you own or control.
Users may use the Software for commercial, or for-profit activities as well as for personal, non-commercial, or non-profit activities.

This is the complete license agreement included in a software installation.

I need an invoice for Rebelle purchase.

Please write to us at and include your full invoicing details. We will send you an invoice in a timely manner.


Visit forum to connect with fellow artists, post your questions or find solutions to your issues.


You can find new video tutorials on our YouTube Channel.


Interface Languages

Within application you can choose from these languages: English, German, French, Spanish, Finnish, Italian, Portuguese (BR), Simplified and Traditional Chinese, Japanese, Korean, Russian, Turkish, Polish, Slovenian and Slovak.

If you would like to make translation for your fellow artists, please contact us at

System requirements

Intel i5 or equivalent AMD processor
200MB hard disk space
Open GL graphics card with 1GB RAM
Windows 7 (64-bit or 32-bit) or Mac OS X 10.13

Intel i7 or equivalent AMD
200MB harddisk space
Open GL graphics card with 2GB RAM
64-bit system Windows 7, 8,10 or Mac OS X 10.14 and newer
Wacom or Surface compatible tablet

Internet connection is required for activation.