Resizing screenshots

How can I make a screenshot of a graph smaller with Illustrator or Photoshop without losing quality? I am using a Macbook Pro with retina display. I also have a monitor without retina display.

I usually take screenshots in Chrome. When I size them down with Illustrator or Photoshop — by resampling and also not resampling — the end result is very pixelated. The graphs have thin lines and text. Please let me know if I should use a different technique, browser, etc.

I also tried bicubic sharper in PS. As I understand, pixels are thrown out when sized down so it may be impossible to maintain crispness in thin lines…?

Answer

You have, in effect, answered your own question:

As I understand, pixels are thrown out when sized down so it may be
impossible to maintain crispness in thin lines…?

This is the reason why what you are asking is not possible.
The resolution of your monitor does not have anything to do with the process that is taking place when you downsize.

You can experiment more with the kinds of downsizing algorithms that Photoshop offers (you mentioned you’ve already experimented with bicubic variants). One option is to take your low resolution screenshots and put them into a high resolution document. This will effectively shrink your images without losing any of the actual pixel information.

For example, putting a 72dpi graph into a 300dpi document will make the graph smaller without losing any of it’s pixels. However, this may not be possible if you are working within a digital space instead of a print space.

Attribution
Source : Link , Question Author : Denise , Answer Author : KoldBane

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