Question 1

Does quality decrease?

Accepted Answer

JPG is a lossy format, but we use high-quality settings (85%) to ensure it looks great while reducing size.

Question 2

What happens to transparency?

Accepted Answer

JPG does not support transparency. Transparent areas will become white.

Question 3

Will the image quality improve after converting to PNG?

Accepted Answer

No. The conversion to PNG is lossless going forward, but it cannot recover quality already lost from JPG compression. You're preserving what's there, not improving it.

Question 4

Does PNG support transparency?

Accepted Answer

Yes: but the JPG you upload has no transparency data. The resulting PNG will have a solid white or opaque background. To get a transparent background, you need a background removal tool first.

Question 5

Why is the PNG so much larger than the JPG?

Accepted Answer

PNG stores pixel data losslessly without compression artifacts. A typical photo PNG is 3–5x larger than the equivalent JPG: this is expected and correct.

Question 6

When should I use JPG-to-PNG?

Accepted Answer

Use this conversion when you need to edit an image further without additional quality loss, or when a tool requires PNG format (e.g., some design tools, certain web frameworks).

Question 7

How much smaller will the JPG be?

Accepted Answer

BMP files are completely uncompressed, so JPG output is typically 95–99% smaller. A 10 MB BMP screenshot commonly produces a 100–300 KB JPG.

Question 8

Will I see any quality difference?

Accepted Answer

At 85% JPG quality, the visual difference is imperceptible for photographs and screenshots. Flat-color graphics may show slight edge artifacts.

Question 9

Does BMP support transparency?

Accepted Answer

Some BMP variants support alpha channels, but transparency is not preserved in JPG. Transparent areas become white.

Question 10

Why does Windows use BMP?

Accepted Answer

BMP is a legacy format developed by Microsoft in the 1980s. Windows Paint and older screen capture tools default to BMP. Modern tools prefer PNG or JPG.

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