Graphics files in a variety of formats can be imported into InDesign. To choose the format to use, please check with the service provider who will assist you in producing the document. As a result, you may tailor your documentation to the formats and options that are most appropriate for your project.
Concerning vector graphics
Vector graphics, also known as vector shapes or vector objects, are made up of mathematical concepts called vectors that define straight lines and curves. The image is described by the vector, which is based on the geometric properties of the image.
Because vector graphics are not tied to resolution, when you vary the size of vector drawings, print vector graphics to PostScript printers, and save vector images in PDF files, you can move or modify them at whim without losing details or hurting clarity. When you use vector graphics or import vector graphics into a vector-based graphics program, the edges of the vector graphics will remain sharp. As a result, vector graphics are the greatest option for artwork (such as logos) that will be utilized in a variety of sizes across many output media.
Regarding bitmap images
Bitmap images (also known as raster images) are images that are represented by a rectangular grid of picture elements (pixels). A precise position and color value are allocated to each pixel. You edit pixels, not objects or shapes, when dealing with bitmap images. Because bitmap images can more successfully portray the delicate gradations of shadows and hues, they are the most often utilized electronic media for continuous-tone images (such as photographs or digital paintings).
Bitmap images are defined by their resolution, or the amount of pixels they have. As a result, if you scale them up on screen with a high zooming ratio or print them at a lesser quality than when they were made, the details will be lost and the image would appear jagged.
Image resolution guidelines for the final result
The source file determines the image resolution for imported bitmap images. You can set a custom resolution for bitmap effects. Consider the image's eventual publishing medium when choosing an image resolution. The criteria below can assist you in determining your image resolution requirements:
Printing for Business
Commercial printing requires pictures of 150 to 300 ppi (or higher) depending on the printer (dpi) and screen frequency (lpi) utilized; always check your prepress service provider before making production decisions. Because commercial printing necessitates huge high-resolution images (the processing of these images takes longer to complete the display work), low-resolution versions must be used while typesetting, and high-resolution ones must be used for printing.
Printing on a desktop
Image resolution for desktop printing ranges from 72 ppi (for photos printed on a 300 ppi printer) to 150 ppi (for photos printed on a device up to 1000 ppi). Make sure that the graphics resolution matches the printer resolution for linear drawings (1-bit pictures).
Publishing mostly on internet
Because online publishing typically necessitates that the image's pixel size be appropriate for the intended display, the image's width and height are typically fewer than 500 pixels and 400 pixels, respectively, to allow for browser window controls and layout components such as captions. Produce an original image with a screen resolution of 96 ppi for Windows-based photos; create an original image with a screen resolution of 72 ppi for Mac OS-based images so that you may view the image in a standard web browser Image effect.
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