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Increase Image Size to 150KB

Pad to exactly 150KB for portals with a mid-size minimum.

KB
Advanced (optional): exact pixels or minimum KB

Many forms ask for pixels as well as KB. Leave empty if yours does not. Examples are common sizes only – always use the size your form states.

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✅ Done! Your images are ready

By Yasir, Lahore · Last reviewed October 25, 2026

A 150KB minimum

150KB minimums are set by some certificate and verification systems that expect a scan of reasonable resolution. A phone photo that has been resized for chat typically lands between 50 and 120KB and gets bounced.

Example. A 90KB JPG of a certificate is padded to 150KB. Pixel dimensions, colours and text stay identical. If the portal also wants at least 1000 pixels on the long side, check that separately.

Better than padding?

  • If you still have the original photo, use it. A bigger real file is better than a padded one.
  • If the original is gone, pad here.
  • For a size ceiling instead, see Compress to 150KB.

Watch for

  • Upload widgets that re-compress files. Try a different browser if the final size changes.

Why the size reads differently on different devices

This page pads to 150 × 1,024 = 153,600 bytes. Windows file properties shows that as 150 KB (153,600 bytes). Many phone file managers count 1KB as 1,000 bytes and will show the same file as about 154 KB. Both numbers are at or above 150, so a minimum is met either way. Only a ceiling can disagree, which is why this page is for floors and the 150KB compress page is for ceilings.

Questions about: Increase Image Size to 150KB

Can the tool add detail so the 150KB is real?

No. It cannot invent detail. Only a better original can do that.

What does exactly 150KB mean?

153,600 bytes (150 × 1,024).

Is the result still a JPG?

Yes.

About the Increase Image Size to 150KB tool

This page raises a small image to exactly 150KB for forms that ask for a minimum. The tool does it by adding invisible padding to the JPG, so the picture looks the same and only the file size changes.

How to use the Increase Image Size to 150KB tool

  1. Tap “Select Images” and choose your JPG, PNG, WebP or HEIC file.
  2. Make sure Increase (make bigger) is selected and the size box shows 150, or type the size your form states.
  3. Confirm Increase (make bigger) is selected and that the size box shows 150.
  4. Press the green button, check the Before and After sizes, then download the file (or the ZIP if you added several).

More questions about Increase Image Size to 150KB

Which formats work for a 150KB target?

JPG, PNG, WebP and HEIC files can be selected. The result is saved as a JPG.

Will the file look the same after padding?

Yes. The padding is invisible filler, and a JPG keeps its pixels. A PNG or other format is first re-saved as a JPG.

Related sizes and tools

150 KBIncrease to 100 KBIncrease to 200 KBCompress to 150 KBIncrease Image Size in KBImage Resizer to KBPhoto Ka Size KB Mein Kaise Badhaye

Need the opposite? Try Compress image to 150KB.

Every ready-made size is listed on the Image Resizer to KB page. Prefer a percentage instead of a KB size? Use the quality-based image compressor, or read our image guides.