Resize Image to 20KB for Minimum-Size Uploads
Choose or drag an image, keep the 20KB preset, choose Auto resolution, then click Resize to download. No sign-up, free to use.
Drag and drop an image here, or click to select
Supports JPG, PNG, WebP, HEIC, BMP, GIF (Max 50MB)
You can upload up to 10 images at a time
When to use 20KB
Use 20KB when admissions, exam, or application portals require signatures or ID photos in the 10-20KB range, or list a strict 20KB maximum. If the portal allows 20-50KB, 20KB is only the minimum, so the 50KB preset gives better clarity.
How to resize image to 20KB
Choose the image
Click Select or drag and drop the image. Use a clear photo or scan when possible.
Adjust to 20KB
Keep the preset value. Choose Auto or Fixed resolution. If you need higher accuracy, keep Auto resolution.
Download the image
Download the resized image. You can also rename it before saving.
20KB FAQs
Which uploads most commonly require 20KB?
Some portals set signature files to 10-20KB or list a strict 20KB maximum. Use 20KB when the rule says 20KB or 10-20KB.
The rule says 10-20KB or 20-50KB. Which should I choose?
If the range is 10-20KB, a good default is 20KB for clearer results. If the range is 20-50KB, start with the 50KB page unless the portal asks for smaller.
The portal says my file is too small or low quality. What should I do?
If the portal allows a larger size, move up to 30KB or 50KB. Otherwise start with a sharper source image and keep Auto resolution.
Is 20KB better for signatures or photos?
20KB is usually fine for signatures or simple graphics. For ID photos or headshots, use 50KB when allowed.
Do I need JPG/JPEG for 20KB?
If the portal specifies a format, follow it. JPG is usually best for photos and hits 20KB more easily; use PNG only when transparency is required.
What if the portal also lists pixel size?
Match the required pixel dimensions first (use Fixed resolution only when exact pixels are required), then resize to 20KB.
How can I hit 20KB without losing clarity?
Use a clean, sharp original, keep Auto resolution, and avoid overly detailed or grainy photos. If clarity suffers and the rule allows, move up to 30KB or 50KB.