CHG_CANON wrote:
You want to adjust the pixel resolution, that is the 'length' by 'width' size of the image as measured in pixels. What are the pixel dimensions of the current file and what do you want them to be afterward? If 400,000 pixels is the desired resolution, this is a file measured as 1000px by 400px, or any similar dimensions that calculate to 400,000-pixels.
This discussion probably has way more detail than you're looking for, but most any digital editing software will help you adjust the pixel dimensions: Recommended resizing parameters for digital images
For free software, the 'resize' option within Windows Paint will help, whether you adjust the percentage or pixels. Apple will have something free and similar. As discussed in the link above, 2048-pixels on the long side of the file is more than enough for the pixel resolution of a cell phone display.
You want to adjust the pixel resolution, that is t... (
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