Open the app, select your preferred mode (Writing or Paint), then tap the '+' button to create a new canvas. You can also choose the canvas size and settings before starting.

Yes, Sketch Board supports infinite zoom levels. Pinch with two fingers to zoom in or out, enabling detailed editing or global viewing seamlessly.

Tap the mode toggle button usually located on the toolbar to switch between Writing Mode and Paint Mode, accommodating different creative needs quickly.

Sketch Board offers various brushes such as pens, pencils, airbrushes, and image brushes. Tap the brush settings to adjust parameters like width, height, and style easily.

Use the 'Add Item' feature to insert images, text, or links onto your canvas. Select the item type, then position and edit as needed from the toolbar.

Go to 'File' > 'Export' > 'Export as PDF' to save your entire canvas or selected items as a PDF file, suitable for sharing or printing.

Subscription unlocks unlimited layers, advanced editing tools, PDF import/export, no ads, and access to special brushes and erasers. Find it in Settings > Account > Subscription.

Upgrade via the in-app purchase prompt or Settings > Account > Subscribe. Please ensure your Windows version is Windows 10 18362 or above for full compatibility.

Try restarting the app or your device. Make sure you have the latest version installed. If issues persist, contact support through Settings > Help or Feedback.