How to Format Your Art to Print at Different Sizes

The size and resolution of an image affects both its appearance on your estimator screen and its print quality.

Resolution

Resolution refers to the amount of visual detail contained in an prototype. The resolution of output devices (printers) is measured in dots per inch (dpi), and in the case of halftones, lines per inch (lpi).

An case of a high-resolution (left) and low-resolution (correct) image. In press terms, a higher dpi ways that the printer volition place more dots of ink for every inch of artwork.

• For most artwork, 300 dpi is preferred. Nigh printers produce excellent output from images set at 300 ppi.
• You can apply 150 dpi for large prints considering the difference in print quality is not very noticeable on large pieces when you look at the prints from a distance.
• Output device resolutions vary, depending on the type of press and newspaper used. In general, a photo is output at a crisp 150 lpi if printed on glossy magazine stock, and at 85 lpi if printed on newspaper stock.

Acquire more than almost resolution in the Corel Painter Help.

Canvas dimensions

The canvas dimensions determine the size of your artwork when it is printed. When you set the sail size, cull options that represent to the prototype's destination.

• Consider the largest size at which yous program to print your artwork, as well every bit any smaller or larger copies that you may need.
• Choose a larger image size to preserve more paradigm particular. The large size makes information technology easier to maintain image quality when yous need to produce a smaller version of the epitome. For example, yous tin set the resolution of a new image at 300 pixels-per-inch (ppi), the width to 16 inches, and the height to 24 inches.

Starting with a standard frame size, for example, 18 in by 24 in, volition requite you an adequate amount of detail. When you create a new document, first set the resolution, and then specify the width and the height.

It is always better to beginning with a bigger sail because you tin can decrease the width and height of your image at any point without affecting its quality. Withal, when you lot increase epitome dimensions, the awarding inserts new pixels between existing pixels, and their colors are based on the colors of adjacent pixels. If you increase prototype dimensions significantly, images may appear stretched and pixelated.

Changing the height and width of an image without changing the resolution results in quality loss. Left to right: epitome with smaller dimensions, original image, image with larger dimensions.

• When choosing a canvass size, make certain your document has the proper attribute ratio that will allow you to print to common canvas and paper sizes (for case, viii in past ten in, 11 in by 14 in, 16 in by xx in, 18 in past 24 in, etc.) without cropping your artwork.
• If y'all are using a personal light amplification by stimulated emission of radiation or inkjet printer, set your document size in inches, centimeters, points, or picas at the dots-per-inch setting specific to your printer.
• If you lot are using a commercial printer or a more sophisticated output device, the dimensions of the paradigm should ever exist set to the actual size that you want the image to appear in the printed slice. A good dominion of thumb is to set the number of pixels-per-inch to twice the desired lines per inch. Then, at 150 lpi, the setting should be twice that, or 300 ppi; at 85 lpi, the setting should be 170 ppi. If you have questions well-nigh the resolution of specific output devices, it's a practiced idea to check with the print service provider.

Note that the bigger the canvas size and resolution, the more pixels in that location are in a brushstroke, and the harder it may become for your figurer to procedure information technology. To ensure optimal castor and awarding performance, experiment to detect the largest canvas dimensions that work all-time for your painting and for your software and hardware configuration.

To fix resolution and canvas size

1. 1. Click File > New.
   2. Brand sure the sail preset is gear up to Painter Default.
   3. Choose Inches as the unit.
   4. Enter a value in the Resolution box.
   5. Enter values in the Width and Height boxes.
   6. Click OK.

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Source: https://learn.corel.com/tips/printing-artwork-image-size-resolution/

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