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You can artificially increase the resolution of a jpeg image in Adobe Photoshop, but there will be a loss in quality because data is "invented" through a process called interpolation. A low resolution image only contains X amount of data, and to increase its resolution, you are telling the computer software to add nonexistent data to the picture file. This is generally ok if you're only increasing the resolution by 10% for general print purposes, but to make a dramatic increase in resolution such as 72 dpi to 300 dpi, the image will most likely artifact (pixelate).

The best and obvious solution would be to acquire the original image.

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15y ago

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