Does it lower the quality of my screenshot?
No. The screenshot is drawn at its full size, pixel for pixel, with the background and frame around it, and saved as a PNG, which doesn’t lose any detail.
Which size should I pick for social media?
1:1 or 4:5 suits Instagram and LinkedIn posts, and 16:9 suits slides, YouTube and X. Fit keeps the screenshot’s shape with even padding all round.
How do I take a screenshot?
On Windows press Windows + Shift + S, and on a Mac press Command + Control + Shift + 4, then select an area. Both copy it, so you can paste it straight into this page. On a phone, take the screenshot and open it from your photos.
Can I save it with a transparent background?
Yes. Choose None as the background. The PNG keeps the frame and shadow with transparency around them, ready to place on any slide.