Corel Draw graphics application, web design profession, college level

FINISHING AND EXPORTING IMAGES

All images must be finalized before they are exported to the Web, printed, or saved to CD or floppy disk. The method of exporting your images also has a significant impact on how they are used later. When recommending images, please note the following points:

Image file size

 View file size

 Go to File Open

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 Right click on the file name Property

 View Size

File size depends on:

Image resolution

The higher the resolution and better the quality of the image, the larger the file size.

Image size (area)

Proportional to file size

File extension

The file size depends on this extension, like the same image content but the file with the extension .IPEG will be smaller than the file with the extension

.PSD

Color system

Files with 8 bit color system ( Grayscale/Patted...) will be smaller in size than similar files with 24 bit color system (RGB color..) and even smaller than files with 32 bit color system (CMYK color..)

When saving images, the file size must not be too large for the container, such as for a CD it must not exceed 700MB, for a floppy disk (disk A) it must not exceed 1.44MB.

Image resolution

 Image resolution is calculated by the ratio of dots (Pixels) on an area ratio, usually Pixel/inch, Pixel/cm.. An image with a resolution of 300dpi means that on an area of 1 inch, the image will have 300 pixels wide x 300 pixels wide.

 The larger the resolution of the image, the better the quality, but at the same time the file size containing the image also increases.

 Depending on the purpose of use, we apply different resolution values such as images used to upload to the Web, used on a computer screen have a resolution of 72dpi, images

For normal printing, the resolution must be 300dpi.

 If the image has an inappropriate resolution, when exporting or printing, it will greatly affect the image quality, causing the image to become blurry or broken into jagged lines that can be clearly seen in curved or inclined lines.

Image size

 Calculated in units of measurement, most commonly inches, centimeters, pixels (the smallest unit that a computer can display on the screen)

 On the CorelDRAW screen, the image size is displayed by the icon

Width and Height

File Extension

 This is the part that defines the properties of the image, such as CorelDRAW files are saved with the extension .cdr , Photoshop files are saved with the extension .psd ... then they will retain their separate properties. With the extension .ipg, the file containing the image will be compressed to a smaller size, etc.

 Some software cannot open files with extensions that are not compatible with them, such as Adobe Photoshop cannot open the extension

.cdr file of CorelDRAW but conversely, CorelDRAW can import images of files with .psd extension of Photoshop through Import.

 Depending on the purpose of use, we export images with different extensions such as images that need to be printed in high quality should use the extension .TIFF, images that are circulated usually use the extension .ipeg , .BMF, icons on the Web page use the extension .ICO , etc.

Color system

Color systems play a very important role in exporting images for different purposes. Please note that when printing, you should export images with the CMYK color system (32 bit). For normal images saved on CDs, normal computers use the RGB color system (24 bit).