Resize Image to Under 20 KB Online Free (2026)

General Custom requirements

Requirement	What to use
Dimensions	300 × 400 px
File size	10 KB to 20 KB
Format	JPEG
Quality	Highest quality that fits inside the range
Privacy	Processed in your browser, not uploaded
Typical use	Small uploads for signatures, forms and portals

Check the official notification. These values match the Under 20 KB preset in this tool and may change between recruitment cycles. Always verify the latest official notification on the exam’s website before you submit your application.

About this General photo resize

Some online forms, including certain exam and job portals, set a maximum upload size of 20 KB. Standard phone photos are often several megabytes, so they need careful compression. This preset gives you a 300 × 400 pixel frame and a 10 to 20 KB target. The tool searches for the highest JPEG quality that still fits inside that range, so the image stays as clear as possible at the small size. If your form also asks for a specific pixel size, follow the form.

How to resize it step by step

Upload the photo or scan. JPG, PNG, WebP and HEIC files are accepted.
Check that Under 20 KB is selected, with the frame set to 300 × 400 px.
Crop the image so the subject fills the frame. Tight crops hold more detail at a small size.
Watch the size badge. If it is above 20 KB, reduce sharpness or crop tighter.
Press Make exam ready, check the preview and download the JPEG.

Common reasons for rejection

Image still above 20 KB because it has too much detail or noise.
Image too blurry after compression, usually from a very tight crop of a small photo.
A pixel size the form does not accept, such as a square when the form asks for portrait.
Dark or cluttered background that makes the file bigger.
Scanned text on grey paper, which stays larger than necessary.

Tips for a better result

Use a plain background. Uniform colour compresses far better than texture.
Crop before you compress. Removing unwanted areas shrinks the file more than any setting.
Avoid enlarging small images, because enlarged pixels look blocky.
Keep the original file in case you need a different size later.

Frequently asked questions

How do I resize an image to under 20 KB?

Upload the image, keep the Under 20 KB preset, crop the subject and press Make exam ready. The tool finds the highest JPEG quality that keeps the file between 10 and 20 KB and downloads it.

Will the image look bad at 20 KB?

Small files lose some detail, but a well-cropped photo or signature stays readable. A clean, plain background keeps the result sharp.

What pixel size does this preset use?

It uses 300 × 400 pixels at 200 DPI. Some forms ask for a different pixel size; in that case use the Custom preset and enter the figures from the form.

Can I save the file as PNG?

The format menu offers JPEG, PNG and WebP. JPEG usually gives the smallest file at a given quality, so use it when there is a strict limit.

What if the file comes out smaller than 10 KB?

The tool adds harmless padding so the file meets the minimum in the preset. The picture itself is unchanged.

Is my image uploaded to EzSSC?

No. The file is processed in your browser.

Related photo and signature pages

SSC Signature Size Turn your handwritten signature into an SSC-ready image: clean white paper, dark ink, a 6 × 2 cm frame and a file between 10 KB and 20 KB. RRB Signature Size Create a clean 35 × 15 mm signature image at 200 DPI, with a file size between 10 KB and 20 KB, ready for your RRB application. NEET Signature Size Prepare a NEET or JEE signature at 3.5 × 1.5 cm and 200 DPI, between 10 KB and 30 KB, on a clean white background. IBPS Signature Size Make a clean, small IBPS signature at 140 × 60 pixels with a file between 10 KB and 20 KB, on white paper with dark ink.

All exam photo tools

All tools Photo and signature resizer for every exam preset. SSC Photo Size Make an SSC-ready photo in a few clicks. Crop to 3.5 × 4.5 cm, keep the file between 20 KB and 50 KB and download a JPEG for the SSC online form. SSC Signature Size Turn your handwritten signature into an SSC-ready image: clean white paper, dark ink, a 6 × 2 cm frame and a file between 10 KB and 20 KB. IBPS Photo Size Crop your photo to the IBPS pixel size, compress it between 20 KB and 50 KB and download a JPEG ready for the IBPS registration portal. IBPS Signature Size Make a clean, small IBPS signature at 140 × 60 pixels with a file between 10 KB and 20 KB, on white paper with dark ink. IBPS Thumb Impression Size Prepare your left thumb impression as a square 240 × 240 pixel JPEG between 20 KB and 50 KB, on a clean white background. IBPS Declaration Size Scan or photograph your handwritten declaration, crop it to 800 × 400 pixels and keep the file between 50 KB and 100 KB. RRB Photo Size Make a 35 × 45 mm passport-style photo for Railway Recruitment Board applications, saved at 200 DPI between 20 KB and 50 KB. RRB Signature Size Create a clean 35 × 15 mm signature image at 200 DPI, with a file size between 10 KB and 20 KB, ready for your RRB application. UPSC Photo Size Crop your UPSC photo to 413 × 531 pixels at 300 DPI, keep it between 20 KB and 300 KB, and add your name and date below the photo if the form asks for it. UPSC Signature Size Make a clean UPSC signature at 350 × 150 pixels and 300 DPI, with a file between 20 KB and 100 KB on a white background. NEET Photo Size Crop a NEET passport-size photo at 3.5 × 4.5 cm and 200 DPI, keep it between 10 KB and 200 KB and download a JPEG ready for the application portal. NEET Signature Size Prepare a NEET or JEE signature at 3.5 × 1.5 cm and 200 DPI, between 10 KB and 30 KB, on a clean white background. JEE Main Photo Size Make a JEE Main photo at 3.5 × 4.5 cm and 200 DPI, saved as a JPEG between 10 KB and 200 KB for the application portal. Passport Photo Size Make a passport-style photo at 630 × 810 pixels for the Passport Seva online application, saved as a JPEG between 20 KB and 250 KB. Under 50 KB Size Compress a photo to 30 to 50 KB at 400 × 500 pixels, free and private. Useful for forms that cap uploads at 50 KB.