While the official is best, here are supplementary resources:

The Remnant Wizard is one of GNACAD’s most powerful yet underused features. The manual provides a flowchart for deciding whether to keep, rename, or discard a remnant sheet based on its perimeter-to-area ratio.

Located at the bottom, this allows for precise command input similar to AutoCAD.

The is more than a user guide—it is the technical backbone of reliable geotechnical design. Whether you are a student learning the Meyerhof method or a senior engineer validating a complex multi-layered slope, having the official manual at your fingertips ensures that your inputs are correct, your outputs are defensible, and your designs comply with international standards.

Since a traditional "GnaCAD manual PDF" doesn't exist, you'll need to use alternative resources:

: A comprehensive tutorial set hosted on Google Drive .

What are you trying to learn (e.g., layers, 3D viewing, dimensioning)? Are you using GnaCAD on Android or iOS ?

The final page, step 9, was simple: