Reduce a PNG locally and inspect its dimensions and transparency.
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Your image is decoded and re-encoded on this device. No upload request is made.
For screenshots near 500KB, evaluate the smallest error code or legend. Broad layout preservation is insufficient when the page is being used as evidence of a specific value.
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Browse all image toolsThe 500KB PNG preset is intended for screenshots, interface graphics and transparent artwork that should remain PNG. It gives more byte budget than the smaller PNG presets, but does not promise an invisible transformation. The encoder first tries the available pixels; if the file still exceeds the target, the browser can reduce the dimensions and measure another encoding. PNG remains lossless for each candidate's pixels, while the resizing itself can discard detail. Read the reported dimensions as well as the target status when choosing the download.
The error code is more important than the decorative background. Read it in the downloaded image and verify that hyphens, dots and similar-looking characters remain distinguishable. When allowed, crop to the relevant panel before choosing a tighter target.
Test the chart over the same background colour used in the report. A transparent legend or pale series line may be difficult to see even when the encoded pixels are correct. File-size success does not assess contrast or the meaning of the chart.
There is no such guarantee. A PNG encoding preserves candidate pixels, but a candidate may have fewer pixels than the source. Inspect the elements that carry the information you need.
Photographic variation is often expensive for PNG to encode. If the destination permits JPEG and transparency is unneeded, compare that format from the original. Keep PNG where its format or alpha channel is required.
Use a 500KB JPEG output when you have images from different sources but need consistent attachments.
