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Guides

When the portal says no, start here

Understand KB limits, JPG compression, pixel dimensions and signature sizes before you upload. Every guide gives a direct answer, a checked workflow and the matching free browser tool.

5 guides · written and maintained by DimagKaDahi

Troubleshooting6 min read

Why online forms reject your photo, and how to fix it

The six reasons an application portal rejects a photo — file size, dimensions, format, aspect ratio, background and stale requirements — and exactly what to change for each.

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How-to5 min read

How to scan a clean signature with just your phone

Get a scanner-quality signature image using only a phone camera: paper, pen, lighting, angle, and the cleanup steps that remove grey paper without thinning the ink.

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Explainer4 min read

20 KB to 50 KB photo size: pixels, JPG and file-size explained

What a KB range actually asks for, why files fail on the lower bound as well as the upper one, and how to land inside the range without wrecking the photo.

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How-to6 min read

How to shrink a JPG file size without making it blurry

Reduce a JPG file in KB without unnecessary blur. Learn when to compress, when to resize, which quality setting matters, and how to hit an exact upload limit.

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Reference6 min read

Signature size in cm, pixels and KB for online forms

Understand signature width and height in centimetres, pixels and KB. Convert common 6 × 2 cm and 50 × 20 mm requirements and prepare a clear JPG signature.

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