Frequently Asked Questions.


Trial licenses permit using all the features in 7 days. You can download and try trial version free of charge and get full access to all product functions and technical support for a 7-day trial period.

More information about our trial license, please check with: Trial Version software Distribution Agreement

Payment is required if you wish to continue using it beyond the trial period. To purchase a product, see the Store.

After purchasing, you will receive the license key, by which you can unlock the trial version of CAD Viewer.


All credit card data are transmitted using the secure (encrypted) HTTP protocol according to the current SSL standard.

Yes. We accept credit cards, check, wire transfer and cash. Please fill in the shopping cart and click Continue to secure order page to calculate the order total and choose your preferred payment method.

the product is delivered electronically via Internet download. After your order has been processed, you get a registration email from FastSpring.com which contains all the neccessary information to download and unlock the product.

Usually a few minutes. FastSpring.com authorizes credit card orders almost immediately. In very few cases, if the credit card company refuses to authorize a credit card online, the authorization process must be handled manually which can take a couple of hours. You get an instant email confirmation for your order anyway. Only check orders and wire transfer take a few days.

If you purchased the product from our web as a download, the serial number will be supplied to you in an email sent by FastSpring.com

If you can not find your serial number then please please fill in your name and email address with this form, and we’ll do our best to find it and send it to you via email.

We have your address on file and send you this information again. Please contact our support at sales@aigraph.com if this happens to you.

We strive to provide the best help authoring tools with best support. If you are not satisfied with our products, for whatever reasons, we refund orders within 7 days after purchase.

You get a tax invoice from FastSpring.com which is the reseller and merchant. This invoice comes electronically with your registration email.

We provide free email support for one year after purchase. This time limit is made to make a statement. You can expect support beyond that date as well. Just contact us if you have any questions.Telephone support is unfortunately not possible.We try to reply to support emails within 24 hours and give you accurate and competent answers.