Allow scaling rendered output

[connor4312]

My main display is a high DPI monitor, so all gifs are double big. It'd be very nice if I could configure the scale of gifcap's output so that it create a normal-sized gif.

[connor4312]

Example: https://github.com/microsoft/vscode-docs/blob/vnext/docs/nodejs/images/nodejs-debugging/auto-attach.gif

[hediet]

This is something that annoys me too, with all gif screen recorders.

I fear though that scaling down high DPI content looks just as bad as scaling up low DPI content like here:

// Edit here a screenshot of a downscaled 150% DPI window:

[mix3d]

+1 to this feature request. Being able to rescale to 50%, 75%, etc would help reduce file sizes when exporting, especially when pixel-perfect output isn't needed to show the observed behavior.

[Darkrift411]

+1 to this suggestion. I have the same issue as OP and usually have to toss the output into a third party tool or use something like imagemagik to resize it (and sometimes to compress or reduce quality if its too large to post somewhere). If these were built in that would be amazing.

[joaomoreno]

I've done this a while ago and only achieved blurry results... Maybe we need a better scaling algorithm?