Resize image to 900 KB

Where a 900 KB limit shows up

• Detailed technical drawings under a 1 MB cap
• High-resolution certificate scans
• Photographs where fine detail must be preserved

Tips for a clean 900 KB file

• •Only use the full 900 KB if your connection is stable. On a weak connection, 800 KB is the safer target.
• •Check the output once at full zoom. This size should show no artefacts at all — if it does, the original was already compressed.

Frequently asked questions

Is 900 KB risky against a 1 MB limit?

It is within the limit, but leaves little margin for how the server measures the file. If an upload fails, try 800 KB instead.

Will fine lines in a drawing survive?

At 1550×1950 px and 900 KB, yes. This is one of the safest sizes for line art that still needs compressing.

Is my image uploaded to a server?

No. ShantiTools compresses the image entirely inside your browser — the file never leaves your device.

Common mistakes

• •Uploading a screenshot — screenshots are already compressed and often produce blocky JPEGs. Use the original photo instead.
• •Ignoring dimensions — a file can be the right KB but the wrong shape. This page sets 1550×1950 px automatically.
• •Cropping too tightly — leave a small margin around the head and shoulders so the form does not cut the face.
• •Wrong background — busy backgrounds eat KB and can get rejected. Plain white or light works best.

Troubleshooting

The result is still too big

Start with a smaller source file or crop closer to the face. If the form allows a smaller size, try 800 KB.

The result is too small

The source image may be very low resolution. Upload a larger original photo and retry.

My form rejected the upload

Double-check both the KB limit and the pixel dimensions in the form. Some forms also require exact aspect ratios (e.g. 3.5×4.5 cm).

Other sizes