Key concept: Resolution
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image size, upsample, downsample, resample, dpi, ppi
Resolution
The amount of detail in an image. Digital images are measured by the number of pixels per inch (ppi). For printing, resolution is measured by the number of dots printed in a linear inch (dpi). The higher the resolution, the larger the file size.
The resolution of the top image is 60 pixels per inch (ppi). The resolution of the bottom image is 240 pixels per inch (ppi). To create more detailed images, increase the resolution setting in your camera.
Tools used to determine resolution
- Window > Properties (Organizer)
- Image > Resize > Image Size (Full Edit, Quick Fix, Guided Edit)
- Click-hold the file information box at the bottom of the document (Full Edit)
Tools used to change pixel (screen) dimensions
Tools used to change print dimensions
Related concepts
About the author
Adobe Systems Incorporated
