The PNG image file format is a raster format, which means the color information of each pixel of the image is stored in the file. By contrast, vector-based image formats store instructions showing vector graphics editors like CorelDRAW how to draw the lines and shapes of an image. In short, vector images are like programming instructions while raster images are like databases. Because CorelDRAW is vector-image editor, its operations for editing raster images such as .PNG are limited. However, if you convert the raster image to a vector one, you can edit the converted image. Alternatively, you can edit the PNG file directly with the Photo Paint program bundled with CorelDRAW.
Raster Edit
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Step 1
Click the "File" menu's "New" command to create a new canvas and then click the "Import" command of the "File" menu.
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Step 2
Navigate to and double click the PNG file you want to edit. Drag the mouse over the canvas to define the area the PNG image will occupy. CorelDRAW will fill the region over which you dragged with the image.
Step 3
Click on the image and drag to change its position on the canvas. Drag one of the square handles bordering the image to change the image's size. Click the image again to enter rotation mode and then drag on a curved handle at the image's corner to rotate the image.
Step 4
Click the "Edit Bitmap" button above the canvas to tell CorelDRAW you want to edit the individual pixels of the PNG image. The program will call up the Photo Paint program.
Step 5
Click Photo Paint's brush icon from its tool palette and then drag over the image to change its color. Click the tool palette's eraser icon and then drag over the image to erase. Fill in an area having a single color as follows: click the tool palette's paint bucket icon and then double click the tool palette's bottom color swatch. Click "Edit," click a color and then click "OK." Click the mouse on the area to fill it with the color you chose.
Vector Edit
Step 1
Click the "File" menu's "New" command to create a new document for drawing or importing an image. Click the "File" menu's "Import" command and then navigate to and double click the PNG file you want to edit.
Step 2
Drag over the canvas to place the PNG image onto the canvas and then click the "Bitmaps" menu's "Quick Trace" command, which creates vector shapes from raster shapes. Right-click the image and click "Ungroup" to make the individual shape editable.
Step 3
Click the tool palette icon shaped like an arrow with a curve to enter the mode for editing vectors.
Step 4
Click one of the handles (called a node) of one of the vector shapes and then drag to change the node's position. This changes the shape containing the node.
Step 5
Press the spacebar to enter "Pick" mode and then drag a vector shape to change its position.
Step 6
Click the "File" menu's "Save" command and then type a file name in the "Name" text box. Click "OK" to save the image in CorelDRAW's vector-based format.