Inserting and Resizing Images
This tutorial will go over how to insert and resize images. Create a new image, File ▸ New. The canvas dimensions used here are 1600 x 1200 pixels with a white background. Use File ▸ Add Images... to add your first image. Alternatively you can copy and paste images into your canvas, or drag and drop the files onto the canvas.
Tip: If you add a single image via the File ▸ Add Images… menu item, and it doesn't fit on the canvas, Acorn will begin a scale and rotate transform for you. The image will be automatically scaled to fit into the canvas. If you want to pop out of the scale, pressing the ESC key will end it.
As you can see, the image of the flower is much larger than the canvas. To resize the image, use Layer ▸ Rotate and Transform ▸ Scale and Rotate (⌘⇧T). Handles and an outline will appear around your image. Increase or decrease the size of the image by dragging in or out on a corner handle, or you enter a value in the 'scale' field in the inspector palette. You can also move the image around the canvas by clicking in the middle and dragging it around. Once you have the image placed where you want it, double click to end the transformation, or click ‘Apply’ in the palette.
Add a few more images and repeat the steps outlined above for resizing them and moving them around on the canvas. If you wish to remove or "crop" parts of an image you have added, use the selection tool. Make sure you are currently selected on the image layer you are going to modify. Choose the rectangular select tool and select the area you wish to keep. For more information on how to use the select tools, read 'Making Selections'. The selection here is shown as ‘View Selection Clipped Out’ to illustrate its location.
Choose Select ▸ Inverse. Then, hit the delete key. Deselect by using keyboard shortcut ⌘D. Use the move tool to reposition the layer if needed.
Repeat this process with other images you wish to add to your canvas. You can use guides to get your images lining up precisely (see rulers and guides from more information), and the crop tool to trim off any blank areas of canvas that are left over.
This technique is useful for placing many images into a single image, compositing, or creating storyboards.